[ Grammar ]
Please be quiet. I ____ (try) to concentrate on my math homework.
A. am trying
B. are trying
C. try
D. tries

Random Topics:
Grammar: was/wereNarrative, Past TensesAdjective & AdverbConditional SentenceAdverb of TimeQuantifiers and ArticlesModals TensesFragment, Comma Splice and Run -on SentenceVerb PhraseNouns FormationOther quiz:
Grammar › ViewMy brother is so __________________. Although he is 26, he still acts like he is 16.
A. informal
B. uncommon
C. immature
D. uncomfortable
Conjunction › View
We have to clean our bath tub regularly … mosquitoes do not lay their legs there.
A. to
B. in order to
C. so that
Vocabulary › ViewWhat is ‘command’?
A. To give an order
B. The day before tomorrow
C. The highest part
D. He helped ______ the building.
Present or Past Tenses › View
What is the correct form of the verb ‘to go’ in past tense?
A. Gone
B. Going
C. Went
D. Goed