[ Subject - Verb Agreement ]
Our science professors _____________ the experiment very well.
A. explain
B. explains
C. to explain
D. explaining

Random Topics:
In/On/At + TimeKinds of SentencesPast Perfect TenseBASIC GRAMMAR - PRONOUNSPossessive Nouns with Apostrophes and PronounsPast simple regular verbsVocab and GrammarInfinitive FormsPast Tense and NeutralConditionals / Unreal PastOther quiz:
Article › ViewArticle ‘The” is used when
A. When used the specific noun for the second time
B. Before both the countable and uncountable nouns
C. For the above two situations
Vocabulary › View
Which word best describes an action that is likely to upset or anger others?
A. Tactful
B. Inflammatory
C. Laudatory
D. Deferential
Tenses › ViewI saw you driving down Green Street yesterday! Where _____?
A. did you go
B. were you going
Grammar, adverbs of frequency placement › View
Does usually she play video games instead of doing homework?
A. Correct
B. Incorrect
