单项选择题
A.5 tons B.5 metres C.5 feet D.5 years
It’s going to rain. Don’t forget （）the hatches.A. to cl...
单项选择题It’s going to rain. Don’t forget （）the hatches.
A. to close B. to open C. to close and open D. closing
The crane is （）. Could you ask somebody to repair it?A....
单项选择题The crane is （）. Could you ask somebody to repair it?
A. work well B. good C. out of order
The sailor on duty is （）the derrick now.A.doingB.adjust...
单项选择题The sailor on duty is （）the derrick now.
A.doing B.adjusting C.working D.working on
