题目内容
—Why didn’t you go to yesterday’s meeting?
—I would have but I ______too busy working on the important experiment.
—I would have but I ______too busy working on the important experiment.
| A.had been | B.was | C.were | D.am |
B
结合语境这里描述当时的情况,宜用一般过去时。
练习册系列答案
相关题目