[ Present & Past Tenses ]
The engine….smoothly when it suddenly stopped.
A. is running
B. runs
C. has run
D. running
E. was running

Random Topics:
Adverbial Clause / If / ComparativesPhrasal Verbs with up and downTense1st & 2nd Conditionals-Ing and Infinitive Verb PatternsGrammar Comma UsageExpressing Obligation and ModalsAuxiliary Verbs (be, do, have)Past and Present TensesPassive VoiceOther quiz:
Adverb & Compound Sentences › View__________ your parents retire, they will want to travel more, __________ they need to plan their retirement carefully.
A. If, and
B. Until, for
C. After, so
D. After, or
Grammar › View
After oil was discovered, Texas became the ______________it had ever been.
A. more prosperous
B. prosperous
C. most prosperous