The space walk will last six and a half hours and the repair of Discovery is expected to

问题补充：

The space walk will last six and a half hours and the repair of Discovery is expected to a little more than an hour.

A. take

B. cost

C. spend

D. adjust

答案：

(答案→)A. take

B. cost

C. spend

D. adjust

解析：take花费时间,用于sth.takes some time结构中。