单项选择题

______ many times, this radio receiver is found very sensitive.

[A] Being tested
[B] Having been. tested
[C] Having tested
[D] Testing
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单项选择题
If he hadn't stood under the ladder to catch you when you fell, you ______ here now.
[A] wouldn't be smiling
[B] won't smile
[C] couldn't have smiled
[D] didn't smile
单项选择题
The football match was televised ______ from the worker's stadium.
[A] alive
[B] alike '
[C] lively
[D] live
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