[ Grammar TOEFL ]
They cancelled all flights because of fog. The passive form of the sentence is, because of fog, ____
A. All flights had cancelled
B. All flights were cancelled
C. All flights have been cancelled
D. They be cancelled

Random Topics:
Adverbial Concession ClausesGrammar- Later/LatterRun-On SentencesGrammar for IELTSPrepositions and Prepositional PhrasesSentencesConjunctionDo not- Does notModals with Perfect InfinitiveAlthough / DespiteOther quiz:
Adverbs, Prefixes, and Suffixes › ViewWhich of the following is the prefix meaning “light”?
A. Chloro-
B. Penta-
C. Telo-
D. Photo-
Modal Verbs › View
“Do you need this paintbrush?” – “Ah, yes. ____ it to me, please?”
A. Do you pass
B. Will you pass
C. Are you passing
D. Are you going to pass
Vocabulary and Tenses › Viewthey … for an hour before the doctor came
A. had been waiting
B. waited
Future Time and Tenses › View
Audrey _________ you with your homework if you need it.
A. will help
B. am going to help
C. going to be helping
