—Is it necessary to look up every new word when I come across it in reading?—No. You ________， because you are likely to guess the meaning from the context.
#62150
A
can't
B
mustn't
C
don't have to
D
ought not to
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He ___________ unwisely, but he was at least trying to do something helpful.
#63139
A
may have acted
B
must have acted
C
should have acted
D
would act
They were determined to carry out the plan at first, but then we ________ persuade them to change their minds.
#63409
A
would
B
could
C
were able to
D
had to
Food safety is important. Rules to stop people from food pollution.
#76536
A
must make
B
must be made
C
can’t make
D
can’t be made
---May we go home mow ? --- No, you____. You____ to go home until 5 o’clock.
#78057
A
mustn’t; are allowed
B
don’t have to; are supposed
C
needn’t; aren’t allowed
D
can’t; aren’t supposed