1. Animals that live on _______ Tibetan plain have to survive in _______ hard climate.
A. the; a B. a; the C. the; the D. a; a
2. People in the west make _______ a rule to buy Christmas presents for their relatives and friends.
A. it B. that C. this D. as
3. The girl’s face looked pale, so our classroom teacher requested that she ________to hospital immediately.
A. send B. be sent C. sending D. should send
