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The tour pal lost his way in the mountain; ________ made things worse was that it began to rain.

I am sure that if it came to that point, he would do ________ is expected of him.

It's said that ________ gains from house sales should pay the individual income tax.

Is it that you often play computer games ________ worries your parents?

— She suggested the number of cars should be limited to stop air pollution.
—_______, the idea is not very practical.

Many provinces have been hit with smog. If _______ unsolved, the problem may lead to more serious results.

The factory which produced fake wine in our city, _______ was shown in the news report, has been closed by the government.

To maintain a nice relationship, both sides are advised to focus on _______ they have in common.

While I was looking through the news online，＿．

It’s still not clear＿＿＿＿＿the two countries can reach an agreement at the conference．