"I'm sorry to have kept you waiting.""Oh, not at all.I ()here only a few minutes."
A、have been
B、had been
C、was
D、will
第1题
Either John or his friends ____________to blame for the bad results.
A、are
B、is
C、was
D、has been
第2题
Large quantities of water ____________cooling purposes.
A、are needed for
B、is needed to
C、are need to
D、is need for
第3题
She divided the cake into three pieces and gave her three children ___ a peice.
A、every
B、all
C、both
D、each
第4题
The country is faced with great problems, starvation____________the top of them.
A、has been
B、is
C、being
D、is being
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