题目内容
He walked down the hills, and ________ softly to himself.
| A．sing | B．singing | C．sings | D．was singing |
D
解析试题分析： 本句中的and是一个并列连词，前后都应该是谓语部分，AC两项的时态不对。B项不能单独做谓语。句义：他走下小山，同时在对自己唱歌。更加句义可知走下山和唱歌是同时发生的事情，故使用过去进行时。故D正确。
考点：考察时态
出彩同步大试卷系列答案By the time Jack returned home from England, his son _______ from college.
| A．graduated | B．has graduated | C．had been graduating | D．had graduated |
- Remember the first time we ________, Ed ?
- Of course, I do. You ________ a song on the stage.
| A．have met; sang | B．met; were singing |
| C．met; sang | D．have met; have sung |
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| A．got paid | B．have paid | C．get paid | D．had been paid |
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— Perhaps next week, but I’m not sure.
| A．makes | B．made | C．has made | D．is making |
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| A．have attended | B．will be attending | C．am about to attend | D．would attend |
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-- OK, I ____ to that.
| A．came | B．have come | C．am coming | D．come |
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| A．discovered | B．have discovered |
| C．had been discovered | D．have been discovered |
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| A．received | B．was received | C．have received | D．had received |