Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

A lot _ since I _ last you.

A. happened - saw

B. happened - have seen

C. has happened – saw

D. has happened - have seen

Đáp án
C. has happened – saw

Câu hỏi thuộc Bài tập:

A lot _______________ since I _______________ last you.