I. Multiple choice (本题共30分，每小题1分)
（ ）1.When you have_____test，you must be careful all______time 。
A. a；/ B. a；the c. an；a
（ ）2. There are so many kinds of computers in the shop .Ican’t decide ________。 .
A. which to buy . B.what to buy C. how to buy .
（ ）3. The little boy boy is very tired . Will you please let him________a rest。
A.stop to have B. stop having c. to stop to have
（ ）4. Xi’an is one of______capital______in China。
A. the oldest；city B. oldest；cities C. the oldest；cities
（ ）5.—How much should I______for the iPhone 5 ? —Five thousand yuan .
A.take B. spend C. pay
