问题描述：
填空、翻译并解释选项
Is Russia____Eruopean country or___Asian one?
A a;an B an;an
John was so sleepy that he could hardly keep his eyes___.
A open B to be opened C to open D opening
The students are ___young people between the ages of sixteen and twenty.
A most B much C mostly D at most
"Excuse me,is this Mr.Robinson's office?""i'm sorry,but Mr.Robinson___works here.He left about three weeks ago"
A not now B not more C not still D no longer
请填空、翻译,并解释为何选择
Is Russia____Eruopean country or___Asian one?
A a;an B an;an
John was so sleepy that he could hardly keep his eyes___.
A open B to be opened C to open D opening
The students are ___young people between the ages of sixteen and twenty.
A most B much C mostly D at most
"Excuse me,is this Mr.Robinson's office?""i'm sorry,but Mr.Robinson___works here.He left about three weeks ago"
A not now B not more C not still D no longer
请填空、翻译,并解释为何选择
问题解答：
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