Though he had tried to climb to the top of the mountain several times, he didn't _____.
The movie Life of Pi is so attractive that it holds the audience's curiosity ________ the story reaches the end.
________ H7N9 is a deadly virus, it is still safe to eat thoroughlycooked chicken.
I will accept Guy coming with us, ________ he pays for his own meals.
Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.
——Did you inform Helen of the plan put forward at the meeting? —Of course. ________ I saw her.