[ Preposition ]
If you keep making so much noise, I won’t be able to concentrate____ my work.
A. at
B. in
C. of
D. on

Random Topics:
Adverbs and PhrasesUncountable NounsGrammar: MorphologyGrammar - Sentence StructureVerb Moods and Vague PronounsRegular Plural NounsArticles & Compound Nouns-ed or -ingGerunds in SentencesAdjectives with -ED and -INGOther quiz:
Past Simple Tense › ViewI ……………………………….. basketball when I was a child.
A. played
B. play
C. plays
D. playing
Vocabulary › View
What is the meaning of gullible?
A. easily fooled
B. a farmer who works his own land
C. a person who comes from a prominent birth or rank
D. large and sturdy
Modals › ViewYou__________have your hair dyed when you are a student. It’s forbidden.
A. don’t have to
B. shouldn’t
C. mustn’t
D. ought not to
Conditional Sentences › View
He never buys lunch
A. if he wouldn’t have cash.
B. if he have no cash.
C. if he doesn’t have cash.
D. if he didn’t have cash.
