17000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 3)

It Susan that you saw last night. She’s abroad with her family.

444/1620

It _____________ Susan that you saw last night. She’s abroad with her family.

should have been

must have been

can’t have been

needn’t have been

Giải thích

Chọn C