问题
选择题
Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.[ ]
A.shall
B.must
C.may
D.will
答案
答案:D
Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.[ ]
A.shall
B.must
C.may
D.will
答案:D