[ Tenses ]
The students were screaming ……………..the teacher walked in.
A. after
B. when
C. while

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Adjective / Noun + to InfinitiveWill & Be going toGerund or InfinitivesPresent Simple TenseAdverbial ClauseFragment, Comma Splice and Run -on SentenceUnless If First ConditionalPresent and Past Simple TensePossessive Nouns with Apostrophes and PronounsCOUNT - NONCOUNT NOUNSOther quiz:
Tenses › ViewFather _______ the newspaper every morning.
A. buy
B. buys
C. buying
D. is buying
Grammar › View
Please be quiet. I …………………………………. (try) to concentrate.
A. am trying
B. is trying
C. are trying
D. try