[ Past Tenses ]
They …………. that we ………….. them.
A. were noticing/watched
B. were noticing/were watching
C. noticed/watched
D. noticed/were watching

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Tenses and ComparisonsConditional and SubjunctiveConditionals and Modals of ProbabilityTo Infinitive or Bare InfinitiveTOEIC Tenses, VerbsPronoun Antecedent AgreementComparatives, Superlatives, and ModalsInfinitive and GerundsGrammar and Verb TensesIELTS GrammarOther quiz:
Grammar › ViewWhile we _______________a museum, I met a School friend.
A. are visiting
B. visited
C. were visiting
Modals › View
If you don’t feel well, I think you __________ stay at home.
A. should
B. must
C. don’t have to
D. mustn’t