1. “How often do you take the medicine ?”
“______ four hours.”
A. For B. Any C. Every D. Each
2. “Is this bike yours?”
“No， it's ______.”
A. Bob B. Bobs C. Bob's D. Bobs'
3. “Is there ______ good on TV this evening?”
"Sorry， nothing good. "
A. nothing B. something C. anything D. everything
4. You have a good suggestion， but it's not as practical as _______.
A. he B. him C. his D. her
5. A chemist prepares his experiments carefully before trying to carry _____ in his lab.
A. it out B. out it C. them out D. out them
【答案及解析】答案选 C。carry out 实施 宾格放在词组中间，名词放在词组后面。如，carry out his experiments.