Bien doi cau ve Past tense, present perfect, Comparison

PAST TENSE AND PRESENT PERFECT

It has been years since we last traveled abroad.
We haven’t
I haven’t watched TV for a week.
The last
We bought this house two years ago.
We have
We have never met him before.
It’s the
It started to rain at 2 p.m.
It has
When did you start working here?
How long
Dave has written a composition for two hours.
Dave started
How long have you been learning English?
When
Keith started driving a car five years ago.
Keith has
This is the first time I have ever eaten this kind of food.
I have
The last time I played chess was in 2000.
I have not
I have never met such a famous person before.
It is
My friend’s mother has been teaching English in this school for a long time.
My friend’s mother started
She has never been so angry before.
This is
The last time it snowed here was six years ago.
It hasn’t
He hasn’t visited his parents for a year.
It is
John and Mary moved to Edinburgh twenty years ago.
It is now
John began playing the piano ten years ago.
John has
I have never read such a romantic story.
This is
They last visited me five years ago.
They haven’t

He hasn’t been back to his homework for 20 years now.
It is
It’s nearly twenty years since my father saw his brother.
My father `
When did you last ride a bike?
How long
We haven’t been to London since 1998.
The last
My wait in the queue has lasted forty minutes so far.
I
I’ve never seen such a bad film as that one.
That’s
The last time Nancy came here was in 1986.
Nancy hasn’t
How long have they lived in this city?
How long ago
When did you first know him?
How
Philips went on a trip around the world three years ago.
It is
I’m asking you this question for the third time.
This is
After that she never got in touch with him.
That was the
We haven’t had a party since last Christmas.
The last time
She began playing the piano six years ago.
She has
When did you last meet him?
How long
















COMPARISON

Helen is young and Lily is young, too.
Lily is
Nam is twenty and Minh is twenty-two.
Minh is
This film is not as interesting as the film last night.
The film last night
No one in this class is as beautiful as Susan.
Susan
This house is higher than all of the houses in this town.
This house is the
Minh studies better than his brother used to
Minh’s brother never used to
He visits his family more frequently than she does.
She doesn’t
My mother doesn’t cook as well as my father.
My mother cooks
John drives more carefully than his brother.
John’s brother doesn’t
Mary sings the most beautifully in her school.
No one in Mary’s school
My house isn’t as large as yours.
Your house is
This road isn’t as narrow as that one.
That road
My bicycle is cheaper than yours.
Your bicycle
Peter plays the guitar better than Jack.
Jack doesn’t
This white armchair isn’t as comfortable the yellow one.
The yellow armchair
David is a better runner than Paul.
Paul is not
Nobody in the class is taller than Carol.
Carol is the
I haven’t written as much as you.
You’ve written
We expected the play to be better.
The play wasn’t
Jane’s hair isn’t as long as Helen’s.
Helen’s hair is

No student in the school is noisier than I am.
I am the
This exhibition is much more interesting than the last one.
The last exhibition was not
This is as fast as the car can go.
The car can’t
This bike is not as expensive as the green one.
The green bike is
Kate ate less than George did.
Kate didn’t
Sarah can swim further than I can.
I can’t
I thought that learning to drive would be difficult, but it isn’t.
Learning to drive is
I am not as good a tennis player as John.
I don’t
Computers used to be more expensive than they are now.
Computers are
No one in the class plays chess as well