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:
Tenses › ViewWhich verb should be in the past tense in the sentence “Last Sunday, Laura listen to the drummers in the park.”?
A. listens
B. listened
C. listening
D. listen
Future Tenses › View
Using to be going to for future: Rewrite the sentence using ‘to be going to’: ‘I will visit my grandparents next weekend.’
A. I will visiting my grandparents next weekend.
B. I am visit my grandparents next weekend.
C. I am going to visit my grandparents next weekend.
D. I am going to visited my grandparents next weekend.
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