A. coverB. spendC. fillD. offer— Do you have enough to ……

单项选择题— I wonder how much you charge for your services. — The first two are free （）the third costs $30.

A. while
B. until
C. when
D. before

单项选择题But for their help, we（） the program in time.

A. can not finish
B. will not finish
C. had not finished
D. could not have finished

单项选择题— Why don't we choose that road to save time — The bridge to it（）.

A. has repaired


B. is repaired
C. is being repaired

D. will be repaired

单项选择题— May I open the window to let in some fresh air —（）!

A. Come on
B. Take care
C. Go ahead
D. Hold on

单项选择题What I need is （）book that contains （）ABC of oil painting.

A. a; 不填
B. the; 不填
C. the; an
D. a; the