[ TOEIC Grammar and Vocabulary Review ]
The researchers ………………….. hard to develop a perfect new model over the last two years.
A. work
B. worked
C. are working
D. have been working
Select your answer:
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Has and HaveOrdering AdjectivesDegree of ComparisonAdverbs & to beTime PhrasesFuture FormsFragment, Comma Splice and Run -on SentenceSo Such Enough TooPast PerfectOther quiz:
Grammar › ViewIt’s a good idea, but it’s very _____.
A. impractical
B. unpractical
C. nonpractical
Grammar › View
The movie Mission Impossible stars Tom Cruise ____________ is no doubt a superstar.
A. who
B. , who
C. that
D. , that