① —Shall I open the window to let some fresh air in?
—No, _____________.
A. I'd rather not B. I'd rather you not
C. I'd rather you didn't D. I'd like not to
2. Vitamin B and C help to _____________ your resistance.
A. set up B. give up C. build up D.stand up
3. He got completely _____________ when he saw both Lucy and Lily, who are twin sisters.
A. confusing B. confused C. confuse D. confuses
4. The professor referred to _____________ yesterday.
A. come B. came C. coming D. comes
5. He insisted that he _____________ from heart trouble, but I didn't think so.
A. should suffer B. has suffered C. suffers D. was suffering
6. It is generally considered unwise to give a child _____________ he or she wants.
