April 22nd ____________ World Earth Day. A. areB. isC. was
—Have you ever seen Tom and Jerry? —Sure. It is one of________cartoons I have ever seen.
The food on the plate smells________.You can’t eat it.
I didn’t go shopping yesterday. He didn’t________.
Usually Xiao Li spends________time doing homework than Xiao Chen does.
Some animals were________in the daytime and________at night.