People along the river didn’t allow them to ________ a factory so as not to pollute the water.
We young people shouldn’t _______ think about the failure (失败) in the past. Instead, we should be _______to face the future.
There ______________ in spring in Suzhou, but the weather there is usually nice at this time of year.
I can’t buy this coat, because it is _______ expensive.
Yesterday Mr. Wang told us the earth always ____ around the sun.
—Do you know when ____? I miss him very much. —Don’t worry. I will tell you as soon as ____.