单选题
It was she that ______ a sharp whistle, which makes ______ possible for us to catch the thief.
A、
gave off; this
B、
gave out; that
C、
gave; it
D、
sent out; them
【正确答案】
C
【答案解析】
[解析] 前半句即主句是强调句，强调she；后半句是which引导的非限制生定语从句，it为形式宾语，指代真正的宾语即动词不定式短语to catch the thief.
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