相关考题
-
单项选择题
The boat is （）to the water surface.
A.down
B.top
C.lower
D.up -
单项选择题
Ready for （）the boat.
A.lower
B.lowering
C.lowered
D.topped -
单项选择题
We are going to carry out an emergency （）.
A.practise
B.practice
C.drill
D.drills
