Grammar Quiz
[ Grammar ]

Burning yard waste releases mold spores, soot, and other contaminants that can aggravate allergies and cause ____ problems.

A. respirator

B. respiration

C. respiratory

D. respired

Select your answer:
A  B  C  D  E 


Random Topics:

Clauses and GerundsSimple Future - WillModal AuxiliaryCorrelative ConjunctionAdjective ending with ED & INGAsking & Giving OpinionPast and Perfect TensesPresent, Past, and Future TimeZero ConditionalSimple Past Continuos

Other quiz:

Modal Verbs › View

I’m sure this is the right answer.
This __________ be the right answer.

A. must

B. might

C. can’t

D. could

Grammar › View

Choose correct non-defining noun phrases:

_____________________________ , won the Nobel Peace Prize in 2009.

A. Barack Obama, the former president of the USA,

B. the former president of the USA, Barack Obama

Grammar › View

My mother and father ___________ to Australia.

A. have never been

B. has never been

C. has went

D. have went

Paired Conjunction › View

He is …….. intelligent, ……… very funny.

A. not only….but also

B. either……or

C. neither…..nor

D. both…..and

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