【小题1】The policeman told the children (not play) in the street .【小题2】Lucy (choose ) to stud

【小题1】The policeman told the children (not play) in the street .
【小题2】Lucy (choose ) to study abroad when she was 16 .
【小题3】My mother always encourages me (work) hard.
【小题4】The Greens (leave) for the USA tomorrow .
【小题5】Go out for a walk if it ( not be) rainy tomorrow .not to play

(答案→)not to play 解析：【小题1】tell sb.(not) to do 表示“告诉某人（不要）做某事”。所以本题应该填not to play。【小题2】根据when she was 16可知，本句的时态应该是过去时。Choose的过去式应该是chose。本句的意思是“她16岁时，选择出国留学”。【小题3】encourage sb. to do sth.表示“鼓励某人做某事”，所以应该填to work。本句的意思是“妈妈总是鼓励我好好学习。”【小题4】通过tomorrow可知，本句应该是将来时，所以应该填will leave。另外leave的将来时也可以用be leaving。因为Greens是复数，所以可以are leaving。【小题5】本句中if的意思是“如果”，引导的条件状语从句。其用法是“主将从现”即，如果主句用将来时（或者祈使句），从句应该用一般现在时。所以本题应该填isn’t。

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