Unit 1 A land of diversity
Ⅰ.单项填空
1.I am sorry I didn’t________what you said.Can you explain it again?
A.turn down B.take in
C.pick up D.carry out
2.________many times, little Tom always forgot to close the window when he left the classroom.
A.Having been told B.To be told
C.Having told D.Telling