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How long is it since John _______ collecting memorabilia?
starts
started
has started
had started
Sau “Since” là một mệnh đề ở thì quá khứ đơn.
How long is it since John started collecting memorabilia?
(Đã bao lâu kể từ khi John bắt đầu sưu tập đồ mưu niệm?)
Đáp án : B
Các bài tập cùng chuyên đề
This camera helps you _______ a perfect image of the landscape you’re enjoying.
The dinner was a real _______. I wished we had gone to another restaurant.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is CLOSEST in meaning to each of the following questions.
Jack prefers going camping in the countryside to playing computer-based activities.