Sorry, there is no ticket _______ for today’s performance.
A. available
B. useful
C. occupied
D. avail
The mother _____ the sick child day and night.
A. cared about
B. cared for
C. care of
D. care in
It’s rare to give birth to eight children at the same time. It must be great to have _______.
A. only child
B. one child
C. twins
D. octuplets
The flight was _______ because of the heavy rain.
A. cancelling
B. cancelled
C. taking off
D. taken off
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