一、单项选择（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1.The loss has not yet been ________accurately(精确地)，but it is believed to be well beyond a hundred million dollars.
A. calculated B. solved C. explored D. operated
4 . The children ________ many times not to swim in the river.
A. told B. have told C. have been told D. are being told
5. ----- What's that noise?
------- Oh , I forgot to tell you. The new mac hine ________
A. was tested B. will be tested C. has been tested D. is being tested
6. My foreign friend says Shanghai is ________ beautiful city and he really wants to pay it a visit for second time.
A. the；the B. a；a C. a：the D. 不填；a
7. He is famous both_________a novelist and poet but he is more famous_________ his novels.
A. for; as B. with; for C. as; for D. like; as
