(6分)家中常见的两种温度计如图所示.(1)体温计的测量范围是________℃到________℃.(2)家庭用寒暑表能测量的最高温度为________℃.(3)在使用温度计前,首先应做到以下两点:A.______________________________________.B.____________________________________(4)体温计在使用前必需的一个操作是:_________________。
When the teacher came into the classroom,
the students .
A.stop to talk
B.stopped to talk
C.stopped talking
D.stop talking