Things are ________ on Mars ________ on Earth because of the different gravity.

Please pass me the cartoon bookcover is a picture of Mickey Mouse.

Jackie Chan has donateddollars to charity.—He is an example to us all.

Tim is weak in math, so he is trying _________ up with other students now.

Oh, you are here. I’m looking for you all the morning. ？ —-To the library.