[ Grammar ]
Who taught you ______ this complex software so quickly? It’s quite impressive.
A. using
B. use
C. to use
D. used

Random Topics:
Present Simple x Present ContinuousModal Verb, Passive Voice-ing / InfinitiveAdjectives and DegreesPresent simple, Present continuous, Singular, PluralPresent simple & ContinuousAsking and Giving Suggestion-ed and -ing AdjectivesConnectivesPresent Perfect and Present Perfect ContinuousOther quiz:
Grammar › ViewWhat is a preposition?
A. A word that shows the relationship between a noun and another word
B. A type of punctuation
C. A verb
D. A noun
Grammar and Vocabulary › View
. Slow down! The _____ limit here is 40 kph.
A. driving
B. traffic
C. speed
Grammar › ViewChoose whether a comma or a semicolon should be used in this sentence:
“When we get to the baseball _____ will you buy me some peanuts?”
A. game,
B. game;
Toeic Verb › View
After Ms. Williams —— Levine Advertising, she made some innovative suggestions to reduce expenditures.
A. join
B. joined
C. is joining
D. has been joining
