[ Gerund and Infinitive ]
Scientists regard the common cold as ………………… by a family of over 200 viruses.
A. being caused
B. to be caused

Random Topics:
Gerund and InfinitivesActive vs. Passive VoiceGrammar - may/might/couldComparative AdjectiveIF CLAUSEDo / Have / Can - Basic QuestionsAspect or tenses of VerbsGrammar and PrepositionActive Voice-Present tenseModal "Have to"Other quiz:
Grammar › ViewWe kept ……. (LOOK) for something else.
A. to look
B. looking
C. look
Future or Past › View
I am going to watch The Avengers.
A. future
B. past
TOEIC Grammar and Vocabulary Review › ViewMr. Robin’s team is making every effort …………… the deadline, which is July 24.
A. meet
B. meeting
C. to meet
D. met
Grammar › View
The father of your mother is your grandmother
A. True
B. False
