[ Grammar ]
I saw a car crash when I ______ for the taxi.
A. wait
B. were waiting
C. was waiting
D. was waited

Random Topics:
Verbal PhrasesPhrasal Verb Put & GoV-ing/to-VPresent/Past/Future Continuous TenseComparison & Modal Verbs in Passive VoiceQuantifiers & Modal VerbsPast Perfect or Past Perfect ContinuousQuantifiers and ArticlesPronouns and QuantifiersSubject Verb Agreement & Subjunctive MoodOther quiz:
Grammar › ViewStudents _____ walk slowly in the hallway, so they _____ get hurt.
A. has to/ won’t
B. can/ will
C. do/ will
D. must/ won’t
Comparative Adverb › View
Blue whales _____ animals that have ever lived.
A. Is larger than
B. Is the largest
C. Are the largest
Grammar › ViewParents want their children_____________?
A. to be happy
B. be happy
C. happy
D. being happy
Homonyms › View
The jockey held the horse’s ___ lightly.
a. rains
b. reigns
c. reins
