＿＿＿＿＿ years ago, people first began to drink tea in China.
A.Thousand B.Thousands C. Thousand of D. Thousands of
＿＿＿＿＿ is our duty ＿＿＿＿＿ the environment.
A.This; protect B.It; to protect
C.This; protecting D.It; protect
＿＿＿＿＿ of our school is covered with trees and grass.
A. Third-one B. One-threeth
C. One-third D. One-thirds
His watch is 5 minutes ＿＿＿＿＿. He feels ＿＿＿＿＿ now.
A.slow; worry B.slow; worried
C.slowly; worry D.slowly; worried
He’s made great progress, ＿＿＿＿＿?
A.doesn’t he B.isn’t he
C.has he D. hasn’t he
Taiwan is ＿＿＿＿＿ the southeast of China.
A.in B.on C.At D.to
