Someone is knocking at the door. It     my sister. It's time for her to be back.
#75649
A
can’t be
B
may not be
C
must be
D
mustn’t be
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My grandfather          us stories when I was young.
#77240
A
was used to tell
B
is used to telling
C
used to tell
D
used to telling
He bought another new car. He _____ a lot of money.
#63258
A
must earn
B
must have earned
C
can earn
D
could have earned
You’d better ________ right after supper.
#77319
A
don’t run
B
not run
C
not to run
D
to run not