Mr Wang (spend) much time (watch) films last nightthe policeman put on his coat and (go) out at once
问题描述：
Mr Wang (spend) much time (watch) films last night
the policeman put on his coat and (go) out at once
答
spent 不规则动词，由last night决定用过去式
watching
spend + time + doing sth 做某事花费时间。
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答
1.Mr Wang spent much time watching films last night. 昨晚他花了很长时间看电影。
last night要用一般过去时态，所以用spend的过去式spent，而spend后用doing
2.went 这句中前面的put是过去式，所以go改为went哈
答
Mr Wang (spent) much time (watching) films last night.( 注：SPEND +时间/金钱+DOING STH 固定用法,LAST NIGHT昨晚,用一般过去时）
The policeman put on his coat and (went ) out at once.（注：AND 连接的两个动词时态要一致.PUT 的过去式与原形相同,GO 的过去式是WENT）
答
spent watching
went.
spend on doing固定搭配。 意思是花费
put的过去式和过去分词都是put，因为后面是at once 所以动作应该已经发生。