SECTION 3: LEXICO-GRAMMAR V. Choose A, B, C or D to complete each sentence. There should be some questions that have more than ONE correct answer. Circle the letter(s) you choose. (70 points)

Câu hỏi

Something ……… happened or they would be here by now.

Đáp án
B. must have been

Câu hỏi thuộc Bài tập:

ĐẾ SỐ 11 HSG ANH 9 (HUYỆN)