Scientists say they have found a way to produce the human body’s own cancer-killing cells through gene treatment, ____ new hope to cancer sufferers.
The Great Wall is more than 6000 li in _________.
We stood there, _________ at the _________ sight.
The child looked _________ at his brother who was badly wounded.
_________ hard, and you will pass the exam.
Every weekend, I watch basketball games which come to me _________ from the USA. A. Lively B. alive C. live D. Living