A. in a nutshell B. the greenhouse effect C. stay in touch with D. easy A. effective B. powerful C. no D. desertification A. unit price B. scholar C. quake D. pencil A. oh B. looks C. abolish D. weak A. bluntly B. is C. take down D. dry A. blackboard B. remain C. kid D. console A. come B. stack C. Antipodes D. Happy New Year A. hopeful B. new C. a pair of scissors D. happen A. vegetable B. thank you C. take apart D. specimen A. accommodate B. USA C. child D. pain