[ Idioms ]
To “catch on” means ___.
a. to understand
b. to be punished
c. to grab something

Random Topics:
Gerund or InfinitiveVerb to haveConditionals III - Mixed 1st, 2nd & 3rd Conditionalslike/do not likePast Simple and ContinuousConjunctive AdverbsHave to/Has toJobsCorrelative Conjunction & Complex SentencesInfinitivesOther quiz:
Modals and Past Modals › ViewWe have to turn our mobiles off before the plane takes off.
A. The plane hasn’t taken off yet
B. The plane has already taken off
C. The plane is now taking off
D. The plane doesn’t allow mobiles
Gerund and Infinitive › View
It is rude…… at people.
A. staring
B. to stare
C. to staring
D. stare
IELTS Vocabulary › Viewto use any information that you have to guess how much something will cost
A. estimate the cost
B. produce profitably
C. infrastructure
D. elease into the atmosphere
Future Tenses › View
My neighbour (celebrate) his birthday party on Friday evening. I am invited.
A. will celebrate
B. is going to celebrate
C. is celebrating
D. celebrates
