一．单项选择（每题1分，共15题）
1. It’s silly _________ Jim __________ go hiking with us.
A for ; not B for ; not to C of ; not to D of ; not
2. Mary often worries about ________ enough sleep because of too much work.
A without having B don’t have C not having D doesn’t have
3. Would you please __________ my pet when I’m away?
A take good care of B well looked after
C to take good care of D took care of
