单项选择题

A．without
B．before
C．while
D．after
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单项选择题
A．He’s not sure he wants to go to the party.B．He just returned from a visit to the Andersons.C．He may not be able to give the woman a ride.D．He will give the woman a ride if he was also invited to the party.
A．He’s not sure he wants to go to the party.
B．He just returned from a visit to the Andersons.
C．He may not be able to give the woman a ride.
D．He will give the woman a ride if he was also invited to the party.
单项选择题
A．Their competitors have long been advertising on TV.B．TV commercials are less expensive.C．Advertising in newspapers alone is not sufficient.D．TV commercials attract more investments.
A．Their competitors have long been advertising on TV.
B．TV commercials are less expensive.
C．Advertising in newspapers alone is not sufficient.
D．TV commercials attract more investments.
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