[ Gerunds and Infinitives ]
As doctors continue (search) _______ for a cure for the common cold, they have found some things that make people more vulnerable to catching a cold.
A. to search
B. searching
C. to search
D. “to search” and “searching”
Select your answer:
Random Topics:
Plurals Correlative ConjunctionActive vs. Passive Voice Grammar: AgreementSimple PastAdjectivePrepositional PhraseFuture Simple TenseModals and Comparative Superlative
Other quiz:
Connectives › View_________________ John proposed to Jane, he had practised for 1000 times.
A. Before
B. After
Grammar › View
Someone has been moving around just now. Do you … him?
A. knew
B. has knew
C. know
D. knows
How to use : Read the question carefully, then select one of the answers button.