(届安徽省桐城市第十中学高三上学期第一次月考)____ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.
These children are polite and never speak loudly in class. _____.
The taxi drew____outside the house.
The news about the flood surprised all______.
_______empty wine bottles stood on the back porch.
_______environmental issues, the government will enforce existing regulations.