[ Grammar ]
Grandpa ________ the letter yesterday
A. have mailed
B. has mailed
C. maliled

Random Topics:
Conditional Sentence Type 2 and Type 3Vocabulary and PhrasesAdverb of FrequencyComparative AdjectivesPrepositions after Verbs and AdjectiveInterrogative PronounsCoordinating & Subordinating ConjunctionsPresent Perfect Simple & Present Perfect ContinuousVerb to beIndependent ClausesOther quiz:
Present Progressive (Future) › View__________ your sister_______________ to Europe tomorrow?
A. Is / travelling
B. Are / travelling
C. Does / travelling
D. Do / travelling
Second Conditional › View
If I ____________ (not speak) Chinese, ___________________ (you/understand) me?
A. didn’t speak/ would you understand
B. wouldn’t speak/ did you understand
Second Conditional › ViewMy brother … with some friends if he goes to the park.
A. play
B. do not play
C. does not play
D. plays
Modal Perfect › View
Unless he runs he______ catch the train.
A. will
B. musn’t
C. wouldn’t
D. won’t
