问题
填空题
根据句意，用所给动词的适当形式填空。
小题1:We celebrate Christmas by _______ (send) cards to each other.
小题2:We should do as much as we can __________ (help) them out of trouble.
小题3:The whole class ___________ (divide) into four groups.
小题4:How much did you spend _________ (buy) the new bike?
小题5:The Green family __________ (have) supper at the table when I came into the house.
答案
小题1:sending
小题2:to help
小题3:is divided
小题4:buying
小题5:were having,
题目分析：
小题1:介词后面通常用动词的ing形式做宾语；故答案为sending。
小题2:句中as much as we can 做动词do的宾语，后面用动词不定式用作目的状语；故答案为to help。
小题3:句子主语The whole class 和divide into构成了逻辑上的动宾关系，所以表达被动，即整个班级被分成了四组；故答案为is divided。
小题4:spend time/money (in) doing sth意为“花费时间或金钱做某事”；故答案为buying。
小题5:根据后面的when引导的时间状语从句可知句子的时态为过去时，并且表达“当我进来时格林一家正在吃饭”，用过去进行时；故答案为were having。