[ Tenses ]
At the moment, they __ (try) to fix the computer system.
A. try
B. are trying
C. have tried
D. have been trying

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Second ConditionalsThird ConditionalsHow often - long - much - manyPerfect TensesModals of ProbabilityProgressive TenseGrammar: was/wereSo, Such, Many, MuchGrammar ModalsGrammar - Sentence StructureOther quiz:
Articles and Quantifiers › ViewAlthough ______ brown rice is better for you, ______ most people prefer______ white rice.
A. _ /_ / _
B. the / _ / the
C. _ / the / _
D. the / the / the
Tenses › View
Tina has signed up for the online English course. Her lessons _________ every day at 10:00.
A. will start
B. start
C. are starting
D. starts