题目内容

We can______the pipe out with hot water, if it is blocked.

A. flush
B. brush
C. rush
D. crush

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A．despiteB．regardlessC．becauseD．on account

A. despite
B. regardless
C. because
D. on account

A．FinallyB．What is moreC．Worst of allD．First of all

A. Finally
B. What is more
C. Worst of all
D. First of all

A．fulfillB．satisfyC．challengeD．come up win

A. fulfill
B. satisfy
C. challenge
D. come up win

【B2】

A. attributing
B. contributing
C. distributing
D. explaining