[ Verb-ing and Infinitive ]
They don’t know …………….. .
A. cook
B. how to cook
C. cooking
D. to cook
Select your answer:

Random Topics:
ModalsCorrelative conjunctionsAction, Helping & Linking VerbsJobsAdverb and Noun ClausesFuture Tenses and ModalsConditional SentencePassive Voice Active VoiceModals and Daily VocabularyVerb Tenses and ModalsOther quiz:
Grammar › ViewOur manager’s ___________ concern is our work productivity.
A. principle
B. principel
C. principal
D. principol
Grammar › View
Identify the adjective in the sentence:
My soup is very hot!
A. My
B. soup
C. is
D. hot
