tổng ôn 6 thì

We _______ Dorothy since last Saturday

• don't see

• haven't seen

• didn't see

• hadn't seen

Answer explanation

Since last Saturday: thì hiện tại hoàn thành

The train ______ half an hour ago

• has been leaving

• left

• has left

• had left

Answer explanation

ago : quá khứ đơn

They (play) ……………… now.

Jack ______ the door.

• has just painted

• paint

• will have painted

• painting

Answer explanation

paint sai vì nếu hiện tại đơn thì paint phải thêm 's'

will have painted sai vì cấu trúc chưa học

painting sai vì nếu tiếp diễn phải đủ: be + V-ing

I (talk) ……………… to my father at the moment

Answer explanation

at the moment: -> hiện tại tiếp diễn

He (meet) ……………… his old friend near his house yesterday

Answer explanation

yesterday: -> quá khứ đơn

-> quá khứ của 'meet' là 'met'

We (be) ……………… in Nhatrang on their summer holiday last year

I ______ Texas State University now.

• am attending

• attend

• was attending

• attended

Answer explanation

now: hiện tại tiếp diễn

He has been selling motorbikes ________.

• ten years ago
  

• since ten years
  

• for ten years ago
  

• for ten years
  

Answer explanation

has been selling : thì hiện tại hoàn thành tiếp diễn

ten years ago : sai vì quá khứ đơn

since ten years: sai vì since + mốc thời gian, mà 'ten years' là khoảng

for ten years ago: sai vì for + khoảng thời gian, mà 'ten years ago' là mốc

Christopher Columbus _______ American more than 500 years ago.

• discovered

• has discovered

• had discovered

• had been discovering

Answer explanation

ago : quá khứ đơn