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课时提升作业(二十)
必修4 Unit 5
Ⅰ. 单项填空
1. (2013·丽水模拟)The Internet and_________on-campus services, from food delivery to laundry, are fuelling a student culture of staying in dormitories. A student can have every need met without leaving the dormitory.
A. various B. expensive C. complex D. interesting
2. (2013·温州模拟)When a disaster occurs, all people, _________they are old or young, rich or poor, try their best to help those in need.
A. no matter B. whether
C. however D. even though
3. (2013·宁波模拟)—What do you think of Tom?
—He has been working very hard. _________he is an advanced worker.
A. No wonder B. No doubt
C. No worry D. No problem
