It isn’t quite ___ whether the Tibetan antelope is still being hunted.
#18664
A
certain
B
sure
C
safe
D
careful
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----Can I buy a Friday’s air ticket for London?----- I’m sorry. But there no tickets____ for Friday’s flight.
#20865
A
left
B
convenient
C
available
D
useful
—Volunteering is becoming increasingly popular in China. —Yeah, people are now ____that helping others is helping themselves.
#19115
A
held
B
known
C
ashamed
D
aware
Mike was our ________ customer, who used to shop here on Sundays.
#18516
A
regular
B
legal
C
normal
D
informal
I’ll go and see you whenever _______.
#17650
A
you are convenient
B
it will be convenient to you
C
at your convenience
D
it is convenient for you
The higher the oil price is, ___________to the global economy.
#19380
A
the more damage will it cause
B
the more it will cause damage
C
the more damage it will cause
D
the more will it cause damage