[ Grammar ]
Why….for the train?
A. do you wait
B. you waiting
C. are you waiting
D. do you waiting

Random Topics:
Question tag and + - AgreementModal AuxiliariesGrammar - Nouns, Verbs, and AdjectivesSimple PresentActive vs. Passive VoiceConditional SentencesVocabulary and DefinitionsPresent Simple vs Present ContinuousHelpful Phrases Modals in the Past - Speculation and DeductionOther quiz:
Vocabulary › ViewWhat does “rigid” mean?
A. About life
B. Sensitive, easy to break
C. Having wonder, interest
D. Very stiff
Perfect and Past Tense › View
The students… math exam yesterday.
A. was
B. had
C. has
D. have