tổng hợp các thì

We _______ Dorothy since last Saturday

• hadn’t seen

• don’t see

• haven’t seen

• didn’t see

The train ______ half an hour ago

• has been leaving

• left

• has left

• had left

They ______ table tennis when their father comes back home

• will play

• will have played

• will be playing

• would play

After I _______ lunch, I looked for my bag

• have has

• had

• had had

• have had

Her brother ______ in Canada at the moment

• works

• working

• worked

• is working

Henry _______ into the restaurant when the writer was having dinner

• was going

• went

• has gone

• did go

By the end of next year, George _______ English for two years

• will learn

• has learned

• would learn

• will have learned

I have been waiting for you ______

• since early morning

• since 9 a.m

• for two hours

• All are correct

Jack ________ the door

• has just opened

• open

• have opened

• opening

He fell down when he ______ towards the church

• run

• runs

• was running

• had run