[ 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:
Tenses › ViewI _____ (attend) the conference tomorrow morning.
A. attend
B. attended
C. will attend
Grammar and Vocabularies › View
You could read the newspaper ——– the internet.
A. in
B. on
C. at
D. for
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
