Grammar Quiz
[ TOEFL ]

The helicopter is able to hover in ___________ powered rotors produce lift even at zero forward speed.

A. flight because of the

B. flying the

C. the flying of the

D. flight because the

Select your answer:
A  B  C  D  E 


Random Topics:

Verb + Infinitive or GerundAdverbs (manners & modifiers)Tenses (Present, Past, Future Forms)Active Voice-Present tenseCountable & Uncountable NounsAbilityNoun PhrasesGrammar : Must (Necessity)Vocabulary and PhrasesAdverb & Compound Sentences

Other quiz:

Grammar › View

I….(do) my homework now.

A. do

B. doing

C. am doing

D. am do

Tenses › View

I had helped my neighbor before I fixed his car.

A. Future Perfect

B. Present Perfect

C. Past Perfect

➤