A.dutyB.responsibilityC.jobD.workCleaning is a frequent……

单项选择题Please return it after （）it.

A.use
B.used
C.using
D.to use

单项选择题The chief officer is responsible （）the overall maintenance of deck department.

A.for
B.to
C.with
D.of

单项选择题At sea, much of the （）time is spent maintaining the ship and her equipment in good condition.

A.officers’
B.engineers’
C.sailors’
D.pursers’

单项选择题At sea, much of the sailor’s time is spent （）the ship and keeping her equipment in good condition.

A.to maintain
B.maintaining
C.maintenance
D.maintain

单项选择题（）is in charge of the common tools of the deck department.

A. The chief officer
B. The duty sailor
C. The bosun
D. Captain