.Mary has _________ 18-year-old daughter who has ________ gift for singing.
#4773
A
a; a
B
an; the
C
an; a
D
the; a
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.The plane ______, _______ all 200 people aboard.
#4771
A
survived; to kill
B
crashed; killing
C
missed; killed
D
balanced; and killing
The research is so designed that once________nothing can be done to change it.
#5001
A
begins
B
having begun
C
beginning
D
begun
Some people who don’t like to talk much are not necessarily shy；they ______ just be quiet people.
#4938
A
must
B
may
C
should
D
would