单项选择题
A.was suffering
B.is suffering
C.has suffered
D.has been suffering
单项选择题 The foreign seafarers said goodbye to us and looked forward to()each other soon.
单项选择题 In the IMO SMCP the situations()phrases using the work “can” appear it clear whether a possibility is referred to.
单项选择题 ()it is advisable to remain on a VHF channel 8, say: “stand by on VHF channel 8”.