[ Grammar ]
We saw (a, an) astronaut in Houston.
A. a
B. an

Random Topics:
Tenses of Verbs - UsageIn/On/At + TimeComparisonsImperative SentencesSo or SuchAdjectives and PrepositionsVerb to haveDefinite ArticlesConditional TypesGrammar (want to/ need to/ have to)Other quiz:
Vocabulary › Viewappearing worn or exhausted; gaunt; fatigued; worn-down
A. resistance
B. beliigerent
C. limber
D. haggard
Grammar › View
Let’s go by train. It’s ______ comfortable than the coach.
A. more
B. least
C. lesser
D. most