[ Grammar ]
The scientists ____________ the cause of the problem. (not/understand)
A. not under stand
B. do not understand
Random Topics:
Comparatives - SuperlativeGrammar - ConnectorsNarrative Tenses & ConditionalsModals for Ability, Possibility and PermissionHas and HaveQuestion tag and + - AgreementIntensifiers: Really vs Very-ed or -ingBecause / soModals for ObligationOther quiz:
Grammar › ViewJane ___ her blue jeans today, but usually she wears a skirt or a dress.
A. wear
B. wears
C. wearing
D. is wearing
Prepositional Phrases › View
Identify the function of the underlined word(s) in the sentence:
Everyone stayed outside in spite of the pouring rain.
A. subject
B. predicate
C. preposition
D. object of the preposition
Infinitive › ViewDo you want___________ basketball?
A. to play
B. play
Modals › View
____ you help me carry these boxes?
A. Can
B. Should
C. Might
D. Must