1. If you blood _____  badly, your hands and feet will get cold easily.

   A. passes          B. crosses          C. circulates         D. circles

2. —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

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.

   A. however         B. whatever         C. whichever        D. whenever