用所给词的适当形式填空【小题1】My sister (write) three English e-mails since last week.【小题2】We went to th

用所给词的适当形式填空
【小题1】My sister (write) three English e-mails since last week.
【小题2】We went to the bookstore (buy) books yesterday.
【小题3】I think it must be an (enjoy) job.
【小题4】I will tell you when he (come) back tomorrow.
【小题5】Brian walked on the street alone. Then he said to (he):“I am lost”.has written

(答案→)has written 解析：【小题1】句意：我妹妹自从上周写了三封英语邮件。Since自从，往往和现在完成时连用，格式have/has+动词过去分词，主语是第三人称单数，故填has written。【小题2】句意：我们昨天去书店买书。To buy去买，不定式做目的状语。【小题3】句意：我想那一定是个令人愉快的工作。Enjoy喜欢，动词；句中要用它的形容词enjoyable令人愉快的，充当定语。【小题4】句意：他明天来的时候我会告诉你。When当…时候；引导时间状语从句，主句用一般将来时，从句用一般现在时表将来，主语是he,故填comes。【小题5】句意：布莱恩一个人走上街上，然后他对自己说：“我迷路了。” Himself他自己，反身代词，做宾语。

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