[ Grammar (was, were, could, could not) ]
We_________open the door: it was locked from the inside!
A. could
B. couldn’t

Random Topics:
Participle - ing/ edPresent Simple, Present Continuous or Present PerfectGrammar: MorphologyTenses and FoodPassive Voice in Past Simple Tense1st ConditionalDeterminersAsking & Giving OpinionPassive SentencesTenses of VerbsOther quiz:
Personal Pronouns › ViewMy grandfather is reading newspaper. ________ is sitting on the sofa.
A. He
B. She
C. You
D. I
Grammar › View
“I’ll stay at home”, Bill told her.
A. Bill told her that he would stay.
B. Bill told her that he would stay at home.
C. Bill told her that he will stay at home.
D. Bill told her that he would stayed at home.
Grammar › ViewThey _________ a kitten at home.
A. has
B. have
Tenses › View
Michael ___________ an accident while he ____________to school this morning
A. saw/ was walking
B. saw/ walked
C. was seeing/ was walking
D. was seeing/ walked