【正文】
C. saw。 singing ( )2. He says he the Great Wall twice. A. has been in B. has been to C. has gone to D. has been for ( )3. People in the Northwest have too many trees, so sandstorm is always ing in many parts of China in spring. A. cut off B. cut down C. cutting off D. cutting down ( )4. This kind of flower looks , but smells . A. nice。 worst ( )5. Don’t waste water the river and the lake. A. put。 to 三 . 完形填空 。cut down 砍倒。 三 .1. A 2. B 4. D 6. A 9. A 10. A 。smell 聞起來。 2. B has been to 表示“去過”。 in C. pour。 ter