[ Modals ]
We __________ drop litter on beaches. It pollutes them.
A. mustn’t
B. can
C. should
D. must

Random Topics:
3rd Person SingularComparison and ModalsAdverbs of How Something is DoneExpressing Obligation and ModalsPreference & Future TenseParallel Structure or Combining SentencesModal Auxiliary VerbsLinking VerbSimple Past Tense and Present Continuous TenseAdverbs of TimeOther quiz:
Some vs. Any › ViewI’ll have to get my TV fixed as I’ve been having ……. problems with it
… … a.some
… b.none
… c.any
Conditionals / Unreal Past › View
If I … their language, I would understand what they were saying about this celebrity.
A. had known
B. will know
C. know
D. knew
Grammar › ViewI haven’t seen Tom ___________________ two years.
A. since
B. just
C. for
D. already
Present/Future/Past Simple/Present Perfect › View
Pasteur _____ in the 19th century.
A. A. was living
B. B. lived
C. C. had lived
D. D. has lived
