[ Grammar ]
The scientists __________(conduct) experiments in the lab.
A. have been conduct
B. have been conducting
C. has been conducting

Random Topics:
Wish SentenceAdverb of FrequencyComparative AdverbsVerbs and Possessive AdjectivePast Simple vs Past ContinuousPerfect TenseSimple PresentGerund & InfinitiveHomophonesModifiersOther quiz:
Phrasal Verb › ViewThe company is aiming to push_______ its share of car sales to 25% over the next two years
A. on
B. up
C. out
D. through
Grammar › View
Last month, we _______ away all our old clothes.
A. gave
B. gives
C. give
Identify The Tenses › ViewRamona and Rina had been studying for hour when their parents arrived home.
A. Past Simple
B. Past Continuous
C. Past Perfect
D. Past Perfect Continuous
Prepositional Phrases › View
Which sentence uses the bold word as a preposition?
A. My cousin from El Salvador is coming to visit.
B. A cry for help came from within the cave.
