A. add up／add to／add up to
1. Five ____ seven makes twelve.
2. The pupils are too young to ____ these figures.
3. The amount of money he makes a month ____ more than 59 000 dollars.
B. calm／still／silent
4. After the storm the sea became ____ again.
5. Keep ____. I am taking a photo of you.
6. Don't keep ____ on bad behavior.
C. too much／much too
7. Never drink ____, for it is bad for your health.
8. The question is ____ difficult for me. Would you please help me out?

A)用because of, because填空
1.____the bad weather, they had to have their P.E. lessons indoors.
2. He won't come ____ he has been informed of the change of the meeting.
B)用a number of, the number of填空
3. All the members were present, but ____ them left earlier for different reasons.
4. Since then ____ people learning English has been increasing rapidly.
C)用even if, as if填空
5.____ I have to sell my house, I'll keep my business going.
6. The stranger is talking ____ he knows everything about the plan.
D)用specially, especially填空
7. My little sister often catches cold, ____ in early spring.
8. I bought this chocolate cake ____ for your birthday.