单项选择题
A.happens
B.has happened
C.happened
D.had happened
单项选择题 My ship is（）No.5 Berth for loading．
单项选择题 MV ATLANTIC AT 0205UTC A BLACK FLOATING MINE WAS SIGHTED IN APPROX POSITION LAT 15.30N LONG 112.30E DANGEROUS TO NAVIGATION VESSELS IN VICINITY. According to this cable，the mine（）.
单项选择题 Marks and Nos.，Number and kind of packages，description of goods should be declared in （）.