题目内容

Where you ？

A. are/be
B. have/be
C. is/be
D. have/been

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We use ________ when proceeding in dense fog

A. auto-steering
B. gyro-pilot
C. rudder gear
D. hand-steering

_________ spanner is this？

A. What
B. How
C. Whose
D. Who

They ________ seamen next year.

A. are
B. were
C. will be
D. shall be

________ is the chain？

A. How
B. What
C. How about
D. What about