[ Grammar ]
Scientists have found that people who are active at a moderate level experience a long list of health benefits and that physical activity —- vigorous.
A. has to be
B. must be
C. needn’t be
D. had better be

Random Topics:
Phrasal VerbSimple and Compound SentencesLinking Words and ConjunctionModals and Past ModalsPossessive Adjectives and Possessive PronounsWish, Unless, If sentencePast Tense vs Future TenseRun-On SentencesAdverbial Clause / If / ComparativesModal ProbabilityOther quiz:
Future Tense Vocabulary › ViewManipulative
A. to resume or start again after an interruption of some kind
B. not paying attention as well as you should
C. someone who helps and learns from someone more knowledgeable
D. having control of the situation or someone not in a good way
Grammar › View
I can never find ……….. bargains.
A. any
B. some
C. much
Grammar › ViewShe has had toothache ———————
A. for December
B. since last week
C. next week
D. yesterday
Idioms › View
Wow, those are really cool sunglasses.
a. slits
b. slides
c. shades
