填空题

The U.S. population of kids (grow)______since the 70s, and will remain at high levels through the’ 90s.

【参考答案】

has been growing
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填空题
She rode the bicycle (caution)______as the road was icy.
单项选择题
A．In a airplane company’s office.B．In a publisher’s office.C．In Germany teacher’s office.D．In a university store.
A．In a airplane company’s office.
B．In a publisher’s office.
C．In Germany teacher’s office.
D．In a university store.
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