97.（单选题）Working here often involves a busy schedule and overtime.

A. A.efficient

B. B.efficiency

C. C.efficiently

D. D.inefficient

A. A.on

B. B.over

C. C.about

D. D.with

A. A.whoever

B. B.that

C. C.whom

D. D.who

A. A.consists in

B. B.consists of

C. C.makes up

D. D.makes from

A. A.designs

B. B.designed

C. C.is designed

D. D.has designed

A. A.在这里工作很忙，还需要加班。

B. B.工作在这里很忙，还需要加班。

C. C.在这里工作很忙，还需要经常加班。

D. D.工作在这里很忙，还需要经常加班。

A. A.essentially

B. B.essential

C. C.necessarily

D. D.necessity