填空题

Some of my colleagues spent a lot of time in (learn) ______Japanese.

【参考答案】

learning
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单项选择题
A．In a bank.B．In a restaurant.C．In a grocery shop.D．In a radio studio.
A．In a bank.
B．In a restaurant.
C．In a grocery shop.
D．In a radio studio.
填空题
The scientist’s (explain) ______is clear enough.
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