题目内容

(1)He spent whole hours in ________.

(2)He doesn't put much ________into his books.

(3)They________ the book worth publication

[  ]

A.think
B.thought
C.thoughts
D.a thought
答案:B;B;B
解析:

though用做动词时,是think的过去式或过去分词;用做名词时,意为“思想”。


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