Đề kiểm tra: Practice test 1 có đáp án
Xem toàn bộ quiz

They ________ supper when the telephone rang.

5/40

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

They ________ supper when the telephone rang.

had

have had

were having

have been having

Giải thích

Chọn đáp án C