Hien tai hoan thanh va hien tai hoan thanh tiep dien

Exercises: tenses
Give the right form of the verbs in brackets: present perfect or present perfect continuous.
I (not see) …………………………….. her since last week.
These students(study)………………………….. English for four years now.
They(not speak)………………………….. to each other since they quarelled.
He (write)…………………………. a novel for two years but he(not finish)………………….. it yet.
We (go) ………………………….on a picnic in the countryside several times before.
I (wait )………………………..here for her since five o’clock and she(not come)……………………..yet.
How long …………you(know)………… Tom?
My brother(go)…………………….to Dalat for holiday.He………..never(be)…………………there.
I (read)…………………………….. that novel several times because I like it.
Ann is very tired. She(work)………………………………………hard recently.