chia động tư trong ngoặc ở thì hiện tại hoàn thành
1.tom (see) this film before
2.how long they (live) here?they (live) here since 1990
3.my father (just wash) his car
4.the students (discuss) his car
5.mary (never,be) to hanoi
6.we (know) each other for 5 years
7.so far we (learn) five lessons
8.we (be) pen pasls for a long time
9.they (not stay) here since last week
10.bob (see) this movie before
11.sandra (lend) her brother $ 200 so far
12.rashid (just pass) his driving test
13.kaen (study) italian for three years now and is still sudying
14.the teacher (already ,tell) to be quiet