第72页

信息发布者：
guests'
politely
swimming
playing
D
B
B
D
D
D
Sunglasses keep/protect our eyes from the strong sunlight.
The volunteers warn us not to litter everywhere.
The teacher has explained the problem to us clearly enough.
Simon is always too careless to notice small mistakes.
It's not right to reach over someone's plate for something while you are eating.
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