________ by the heavy snowfalls, Chenzhou, a city in South China, was cut off from the outside,________ water and electricity shortage.[ ]

My uncle’s dog was in the garden. I saw it _______ under the tree.

It’s a that we missed the important meeting this morning.

Fifteen minutes I can spare to talk over this matter with you．

May I go swimming now— No, you ______. You must finish your homework first.