[ Subject-Verb Agreement ]
After the laboratory report came back, 20 mEq of potassium chloride ____ added.
A. Is
B. Are
C. Were
D. Was
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Modals and Adjectives (ed-ing)Passive Voice in Past Simple TenseModals of AdvisabilityGrammar for TOEFLPresent ContinousPast Continuous Tense & Past ModalsModals, Infinitives and GerundsNouns - Word Form-IONSentence and FragmentGrammar: is/are/was/wereOther quiz:
Grammar › ViewIt was dark and we could _____ see his face.
A. hard
B. hardly
Modals › View
Whatever you do, you ________________ touch that switch. It’s very dangerous.
A. mustn’t
B. don’t have to
C. doesn’t have to
Comparative › ViewThis year the weather is ______ than last year.
A. Badder
B. Worse
C. Worser
Grammar › View
How long (you/study) English? For 5 years.
A. have you studied
B. have you been studying
C. did you study
D. will you have studied