1. ----Are you going to Tom’s birthday party?
----__________. I might have to work.
A. It depends B. Thank you
C. Sounds great D. Don’t mention it
2. Helen always helps her mother even through going to school _____most of her day.
A. takes up B. makes up C. saves up D. puts up
3. The Internet is widely used, which ________ the development of English.
A. takes over B. speeds up C. gets across D. turns to
