Asia is the largest continent, ___ one third of the earth’s land area.
The fact of Madam Curuie’s_______ to the radiation for a long time ______ her poor health.
I wonder __________ that made him so upset yesterday.
A terrible earthquake broke out in Yushu, Xinjiang several days ago,_______ we stopped any entertainment on April 21, 2010
—Do you still work in the factory ________ is friendly to you? —_______, it is two years since I worked there.
Rather than ______ at home , I prefer to go sightseeing in ___________.