问题

Various experiments have been carried out to _____the proper way to raise children. [ ]

A: make
B: fight
C: work
D: seek

正确答案是：

同类题型

He likes telling funny jokes, so I never felt __________ with him.

.You______ be driven out of the school if you dare to cheat in the exam.

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____ keep it a little longer ? I want it very much .

The man ____ you are going to make friendsis my father’s neighbour.