In order to protect the environment, we shouldn’t_ ____any trees. A.turn down B. put down C. cut down.
.If you meet some new words, you can _____ in a dictionary.
---How do you study ____the final test?---I study ____ working with a group.
--I’m worried about my math exam.---______.I believe you can pass it.
A group of middle school students spent two weeks ____the jungle.
She doesn’t have a pen ____.