[ Grammar ]
Listen! I (think)————- someone (knock)———at the door
A. thinking – knocking
B. think – knock
C. think – is knocking
D. think – knocking

Random Topics:
Conjunctions, Interjections and DeterminersModals, Conditionals, and Clauses- Defining, Non-definingReported Speech and Reporting VerbsGrammar : Structural Common ErrorsVerb Patterns / IngGrammar TOEFLPreposition and Word FormPast Perfect Tense and Past TensePhrase vs ClauseGrammar - ConnectorsOther quiz:
Coordinating Conjunctions › ViewI have 3 cars, _____ I’ve never learned to drive.
A. and
B. for
C. so
D. yet
Vocabulary › View
SYMPTON
A. A REASON WHY SOMETHING IS NOT ADVISIBLE OR WHY IT SHOULD NOT BE DONE
B. SHAPE OR OUTLINE OF A SHAPE
C. AN INDICATION OF A PROBLEM
What would you say to express sympathy for an injury?
A. I’m sorry to hear that.
B. That’s your problem.
C. Why didn’t you be more careful?
D. You shouldn’t do that again.
Grammar › View
Although the alcohol level in beer ___ ranges from 4-7%, it can go as high as 15%.
a. usual
b. unusual
c. usually
