[ Gerund and Infinitive ]
Scientists regard the common cold as ………………… by a family of over 200 viruses.
A. being caused
B. to be caused
Select your answer:
Random Topics:
ModifiersInterrogative PronounsDistinguishing Future TensesPossessive Pronouns and Adjective PronounsGrammar - First ConditionalSimple Present Tense/be/Present ProgessiveToeic VerbSimple TenseHave to / Do not have toSimple Past/Past ProgressiveOther quiz:
Transition Words › ViewMy brother, Miguel, enjoys fishing with my dad. _____________ I prefer white-wing hunting.
A. Then,
B. Whereas,
C. Besides,
D. In any case,
Simple Past Tense › View
We ____________ not happy after the sad ending.
A. Were
B. Was
C. Did
D. Are