单项选择题

(There) are (thousand) of (different) types (of) roses.

A．there
B．thousand
C．different
D．of
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单项选择题
Only 11 people ________ the shipwreck.
A．survived after
B．survived through
C．were survived
D．survived
单项选择题
He has ________ the army for ten years and is now an officer.
A．gone into
B．joined in
C．been in
D．come into
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