II.

1.A:Have you ever met

   B:Sat

2.A:Did you start

   B:Have recently completed 

   C:Asked

3.A:saw

   B:Have already seen

4.A:Has worked

   B:Started

III.

1.Was having

2.Travels

3.Haven't begun

4.Is running

5.Invited/didn't come

6.Is cleaning 

7.Began

8.Has made

9.Is cooking

10.Going

11.Haven't seen/left

12.Is/playing

13.Has left

14.Has been

IV.

1.

1.Since

2.For

3.For

4.Since

5.For

6.Since

7.For

8.For

9.Since

10.For

V.

1.Help

2.Homeless

3.Efforts

4.Service

5.Volunteers

6.Activities

7.Benefits

8.Charity

9.Fund

10.Member

VI.

1.Bỏ has

2.Knew→have known

3.Didn't see→haven't seen

4.Was→has been

5.Have gone→went

6.For→in

7.Learn→learned

8.Was→has been

CHÚC EM HỌC TỐT!!!!!

MỎI TAY QUÁ!!!!

CHO ANH CTLHN NHA