赞题库-背景图
单项选择题

Although ______ American literature, he failed to remember the writer of the masterpiece.

[A] he was knowing
[B] he is knowing
[C] knows
[D] having a knowledge of
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单项选择题Nowadays Internet enables us to know things happen almost at the exact moment ______ .

[A] which they are happening
[B] they are happening
[C] which they happen
[D] they have happened

单项选择题The opportunity ______ in a prestigious corporation is a dream for the graduates nowadays in many countries.

[A] to work
[B] working
[C] worked
[D] to be working