[ Grammar ]
How many astronauts have walked on …… moon?
A. –
B. a
C. an
D. the
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Grammar - Present PerfectPassive Voice - Present TensesAdverbial Clause of Cause and EffectPast Perfect and Past Perfect ContinuousPresent, Past and Future TenseNarrative Tenses & ConditionalsJobsGrammar of Conjunctions and PrepotitionsPrepositions & Prepositional PhrasesPassive Voice Present SimpleOther quiz:
Grammar › ViewSome films stars_________difficult to work with.
A. are said be
B. are said to be
C. say to be
D. said to be
Articles › View
Choose the correct article to complete the sentence: John wanted to read a / an comic book.
A. a
B. an
Vocabulary › Viewwatchful; quick to notice; careful and diligent
A. primary
B. observant
Grammar › View
Do you understand? Yes, _______________
A. a few
B. a little