---Wow! Jerry got full marks again! How lucky he is!--- _______. He is not so much lucky as hard-working. He makes full use of his time to study.
---Mr. Smith must know a lot about Chinese history. ---________. He has studied it for years.
While watching television, ________.
In our factory there are 2,000 workers, two thirds of _______ are women.
Your decision will affect your future study in college and your future job _______.
Mr. Smith likes traveling _______; but his wife enjoys _______.