43．A．While B．As soon as C．Before D．Since 【查看更多】

 

題目列表(包括答案和解析)

He met many problems ______ he was going over his lessons.

A．before

B．a(chǎn)s soon as

C．since

D．while

 

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He met many problems           he was going over his lessons.

A．before

B．a(chǎn)s soon as

C．since

D．while

 

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He met many problems           he was going over his lessons.

A．before

B．a(chǎn)s soon as

C．since

D．while

 

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He met many problems           he was going over his lessons.
A．before B．a(chǎn)s soon as C．since D．while

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He met many problems            he was going over his lessons.
A．before
B．a(chǎn)s soon as
C．since
D．while

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