[ Past Tense ]
I thought of it just when you …………………………….. your mouth.
A. was opening
B. had opened
C. opened

Random Topics:
Grammar - must & have toTenses and StructuresMixed TensesSo Such Enough TooAdverb Clauses of TimeWish + Verb 2Pronoun Antecedent AgreementAdjective and AdverbGrammar ElementaryCoordinating & Subordinating ConjunctionsOther quiz:
Phrasal Verbs › ViewEvery Friday, I hang ___________at the bar with my colleagues.
A. out
B. on
C. up
D. around
Grammar › View
The guy _______ was very friendly.
A. that I met
B. which I met
C. who met
D. Whose met
Tenses › ViewIf he works hard he ______________ pass.
A. shall
B. shall be
C. will be
D. will
Verb Phrases › View
____ mineral water, tea, or coffee.
A. go
B. wear
C. cook
D. drink