Anna, have you ______ seen China’s Got Talent (达人秀)– Of course. I ______ it last weekend.

There’s no way of knowing why one man makes animportant discovery anotherman, also intelligent, fails.

(2013·高考江西卷)He wrote a letter________he explained what had happened in the accident.

One way to speciesunder’ threat of extinction – whatever the cause – is to remove them to zoosand parks and breed them there

The key point is not who said the words,______ they are true or not