99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項(xiàng)選擇題

Cleaning is a frequent （）on board a ship.

A.duty
B.responsibility
C.job
D.work

你可能感興趣的試題

單項(xiàng)選擇題

Please return it after （）it.

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

單項(xiàng)選擇題

The chief officer is responsible （）the overall maintenance of deck department.

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

<dd id="glorw"><dfn id="glorw"></dfn></dd>