I’m very glad I have my own room in my house. I ______ do what I want in it.
#78257
A
must
B
have to
C
need
D
can
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The haze or smog was so serious that the winter running _________.Some students complained as they ran
#62272
A
could have cancelled
B
should have cancelled
C
must have been cancelled
D
ought to have been cancelled