— Hello, can I speak to Frank?— I’m sorry, he’s just left home. He     reach his office by 9:30.
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A
can
B
need
C
shall
D
should
推荐题目
 If only I ________ driving before. 
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A
learn
B
learned
C
had learned
D
would learn
They urged that measures _______ immediately to protect the endangered animals.
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A
should take
B
must be taken
C
would take
D
be taken