单项选择题

The manager of the company insisted that all the staff members ______ the new safety rules.

A．would observe
B．observe
C．observed
D．will observe
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单项选择题
There is a nice-looking car there. Peter wonders ______.
A．it belongs to who
B．whom does it belong to
C．whom it belongs to
D．who does it belong
单项选择题
The news ______ the Chinese football team had won the match excited all of us.
A．that
B．which
C．what
D．as
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