一、单项选择 在A、B、C、D四个选项中选出可以填入空白处的最佳选项。(本大题共15分)
1. —Put ___________ waste bag in the dustbin.
—It’s not ________ waste bag. It’s my shopping bag.
A a; the B the; a C /; a D /; the
2. He _________ catch up with the top students all by himself, and he ___________.
A can’t; needn’t help B must; doesn’t need to help
C mustn’t; needn’t to help D can; doesn’t need any help
3. —There are many hair-clips for you to __________.
—but I don’t know __________ to buy.
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