Ⅰ.单项填空
1. — This kind of dress is now in fashion.
— True. I'm considering buying ______ for my wife as her birthday present.
A. it B. one
C. that D. the one
2.______ he might never be able to pay me back, I decided to lend Adam the money he badly needed.
A. Once B. Unless
C. Now that D. Even though
3. — Peter looks so excited. He ______ have won the 100meter race.
— Of course. It's a piece of cake for him.
A. must B. might
C. should D. could
4. — Haven't you decided whether or not to take the job?
— Not yet. I need time to ______ their offer.