PHẦN 3: ĐỀ ÔN LUYỆN THI PRACTICE TEST 3

John won four medals at the competitions. His parents………..very proud of him. A. can’t be B. can’t have C. must have been D. couldn’t have been

15/100

John won four medals at the competitions. His parents………..very proud of him.

can’t be

can’t have

must have been

couldn’t have been

Giải thích

Chọn C