Waste paper shouldn’t _____ everywhere. It’s our duty to keep our classroom clean.
A. be thrown B. throw C. is thrown
相关试题
You have a new friend. Would you please tell me ＿＿＿＿＿?
| A．if he will write to you |
| B．where does he live |
| C．if he did come from Australia |
| D．when was he born |
The price of the Iphone6 is ＿＿＿＿＿ for the young man. He can’t pay for it himself.
| A．high | B．expensive | C．cheap | D．cheaper |
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