—Whose is this blue sweater?—It ___ be Hong Tao’s. His is white. 
#52387
A
may
B
can’t
C
must
D
mustn’t
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They decided      at the end of this month. 
#62013
A
to leave
B
going back
C
travel
D
not start out
—Boys and girls, please have a seat and ____.—Thank you.
#55189
A
help yourselves
B
help yourself
C
helps yourself
D
help you
---Bob, may I_________ your MP4? ---Sure, but you’d better not _____ it to others.
#59636
A
lend; lend
B
lend; borrow
C
borrow; borrow
D
borrow; lend
Don’t lose ________________computer games, little boys!
#61715
A
yourself to
B
yourself in
C
yourselves to
D
yourselves in