题目

选择句子，补全对话     A：Are you free this weekend?     B：_____1_____    A：Would you like to go doing a bird count with us at the Wildlife Park?     B：When is it?     A：_____2_____     B：What time does it start?     A：_____3_____     B：I'd like to go．When and where shall we meet that day? A：_____4_____ We’ll go there by bus． B：_____5_____ A：Bye-bye． A．9：00 a．m．．outside the school gate． B．Nothing much．Why? C．OK．See you on Sunday． D．It starts at 10：00 a．m．and finishes at 4：00 p．m． E．It’s on利用图中的实验所揭示的原理，可制成（ ）A．电磁铁B．电动机C．发电机D．电铃