____________ is estimated is that 300 million farmers will become urban dwellers in three decades.
A. It
B. As
C. That
D. What
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_______________ a person comes from will affect his or her style of speech.
A. What
B. Where
C. When
D. which
It's no longer a question now ______ man can land on the moon.
A. that
B. which
C. whether
D. what
The four great Greek dramatists are Aeschylus, Sophocles, Euripides and Aristophanes.
A. 对
B. 错
Aeschylus’s major plays include The Persians,Seven against Thebes,Prometheus Bound,Antigoneetc..
A. 对
B. 错