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【題目】The police asked many people to _________the truth.

【題目】WeChat becomes very popular, and a lot of people like to use it to each other.

【題目】—Hello! Is that Jenny speaking?

【題目】Air pollution will remain a problem for a long time. we’ve done a lot to solve it.

【題目】Mobile phones should be______during the meeting.

【題目】Sorry, I didn’t see the sign, because I ________ on the phone.

【題目】Fewer and fewer stars______at night because of air pollution.

【題目】—Is the blue bag your sister’s?

【題目】—______notebook is this? It’s really beautiful.

【題目】The cat looks _____________. It is fighting with a dog to protect the babies.