[ Grammar ]
We _________ plant more trees to save the Earth.
A. must
B. must not

Random Topics:
Noun ClausesTenses and ArticlesVerb + PrepositionTensesDemonstrative PronounNounsAdverb of MannerPersonal PronounAdverbs of Frequency & Simple Present TenseComperative and SuperlativeOther quiz:
Grammar and Sentence Structure › ViewTrue or False: Is this a complete sentence?
Every morning, I spend time reading God’s word.
A. TRUE
B. FALSE
Phrasal Verb › View
bring a new car engine into full use (by driving it slowly for a set period)
A. run out of
B. run in
C. run through
D. run off