單項選擇題

They should （）care of anchors to ensure that they are in normal condition.

A.took
B.take
C.taking
D.taken

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單項選擇題

Please （）.I’ll go and ask him to come.

A. wait a moment
B. go
C. stand
D. Sit down.

單項選擇題

-How do you do, Chief Officer!
-（）

A. How are you?
B. Fine, thank you.
C. How do you do?
D. Not at all.