I _______ sing really well when I was a child, but I can’t sing as well now.
A. was able to
B. was able
C. was able in
D. was able of
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I really _______ write and thank Nan for that lovely birthday present she sent me.
A. must to
B. don’t have to
C. mustn’t
D. must
The study shows that some students have difficulty _____ on English texts.
A. reading
B. read
C. to read
D. to be re
You ____ to dress up to come to dinner with us-it’ll be very relaxed.
A. don’t have to
B. have to
C. having to
D. has to
I really ____ get my hair cut. It looks terrible.
A. mustn’t
B. must
C. don’t have to
D. has to