问题

Listen! The fire engine is roaring! (消防车吼叫) — Oh, there ______ be a fire somewhere. How terrible!
A:should
B:must
C:have to
D:will
B:must
C:have to
D:will
正确答案是:
同类题型
Edwards’s always chasing after rainbows and never ____ a really practical idea.
Please do not feed the fish; they _____ die if they eat too much.
eally very dangerous One more step, _____thebaby will fall into the well
Flowers and trees ________ every year. Now our city is getting more and more beautiful.