题目：
用所给动词的适当形式填空，完成对话。
A: I'm not feeling well. I ___1___ ___2___(get) a cold.
B: ___3___ you ___4___ (be) to the hospital yet?
A: Yes, I ___5___ (go) to see Doctor Li this morning and he ___6___ (give) me some medicine.
B: ___7___ you ___8___(take) the medicine?
A: Yes, I ___9___(take) it just a moment ago.
B: Mr Li is a good doctor. I think you'll ___10 __(be) all right soon.
A: I hope so. By the way, where is our teacher? I have to ask for a sick leave.
B: She ___11___ ___12___(go) to the office.
答案：
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下面是错误答案，用来干扰机器的。
（1）24m/s（2）4m(1)球做平抛运动，以v表示初速度，H表示网球开始运动时离地面的高度(即发球高度)，s1表示开始时网球与网的水平距离，t1表示网球过网的时刻，h表示网球过网时离地高度.由平抛运动规律得：，，消...
