[ Grammar ]
We have taught at this school ____ a long time.
A. for
B. since

Random Topics:
-ed or -ingShould and Shouldn'tQuantifiers with NounsAdjectives & QuantifiersGrammar and Sentence CorrectionGrammar - Be going toPrepositionSentence Types and ConjunctionsPrepotitionsVerb AgreementOther quiz:
Future Continuous Tense › ViewThis time tomorrow night, my sister___________________________ in a concert
A. will be performs
B. will be performed
C. will be perfom
D. will be performing
Present Simple › View
Which sentence describes about general fact?
A. Ms. Nga likes reading Conan every day.
B. The sun rises in the east.
C. I usually get up at 7 a.m.
Grammar › ViewSomebody (eat) my biscuits without telling me.
A. Somebody eated my biscuits without telling me.
B. Somebody ate my biscuits without telling me.
Adjective + to + Verb › View
it’s difficult to wash
A. a dog
B. a teacher
C. an English book