[ 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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Vocabulary, Adjective & Preposition › ViewThe thick __________ in the city made it hard to breathe and see.
A. smog
B. squall
C. whirlwind
D. humidity
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Which end mark should you use for the sentence below? Is there a quiz today___
A. .
B. ?
C. !
Comparative › ViewThis year the weather is ______ than last year.
A. Badder
B. Worse
C. Worser
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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