[ Preposition ]
There is somebody ______ the door. Shall I go and see who it is?
A. in
B. on
C. at

Random Topics:
Grammar Error Correction (Simple Present Tense)Indirect SpeechGrammarQuestion TagGrammar - NounsNarrative TensesGrammar, adverbs of frequency placementTOEFL GrammarSecond ConditionalClauses and ConjunctionsOther quiz:
Modal Verbs › ViewYunus didn’t study for his examination. He ______
A. Should have studied
B. Should have study
C. Should not have studied
D. Should studied
Grammar › View
Please be quiet. I ____ (try) to concentrate on my math homework.
A. am trying
B. are trying
C. try
D. tries
Verb Tenses › View. Which sentence uses the past perfect continuous? a) I had been waiting for an hour. b) I waited for an hour.
A. I will wait for an hour.
B. I was waiting for an hour.
C. I have been waiting for an hour.
D. I had been waiting for an hour.
Modal Verbs › View
It’s sunny outside, but she’s carrying an umbrella. It ___ rain later.
A. might
B. must
C. can’t
