问题 改错题 单句改错。l. When you are walking across a street, you must are very careful . A B C D ( ) 2. Few of them can drive, can't they? A B C D ( ) 3. He couldn't go to school because illness. A B C D ( ) 4. There are much too people in Room 303. A B C D ( ) 5. I can't find my pen. It mustn't still be in the classroom. A B C D ( ) 答案 1.C--be 2.D--can 3.C--because of 4.B --many/too many 5.C--can't
