【单选题】
The young motorman as well as the others ()to operate the oil separator.
A、has learnt
B、have learnt
C、learn
D、are learning
A、has learnt
B、have learnt
C、learn
D、are learning
A、the bridge officer on watch B、the chief engineer C、the duty engineer D、the duty motorman
A、A.Even he is young B、B.Young though he is C、C.In spite of he is young D、D.Young is as he