Autumn is coming, we can see the ________ wheat in the field, it shows a good harvest.

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--There are so many useful and interesting books, which one do you want to choose?

--It's difficult to ________ a choice.

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It' s time for dinner, so we ________ playing basketball.

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We all admire his success, but we should learn from his ________ and action at the same time.

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单项选择

The earth moves around ________.

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It gives us the opportunity to think about environmental ________.

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Earth Day is ________ the first of the environmental movements

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In China, the ________ of deserts is increasing the amount of yellow.

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It sounds like you are very ________ in the environment.

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单项选择

It is raining _______.

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