1.—Don'truninthehallways!It'sdangerous!—.

2.—Ilikethepartysomuch,butIgohome.It’stoolate.—Whatapity!

3.—arethechildrendoingnow?—They'replayingsoccerontheplayground.

4.—WhereisAndy?—Heisreadingunderthebigtreeinthe.

5.—Whycan'tMaryseetheblackboard?—Becauseaboysitsher,andheisverytall.

6.—WhatdoesJenniferlooklike?—.

7.—I'mverythirstynow.Iwouldliketodrinksome.—Hereyouare.A.B.orangesC.orange

8.—Whenhetothezoo?—Yesterday.

9.—Itismyturn.Ifeelalittlenervous.—!Youcanmakeit!A.B.C.D.

10.Hehastwodaughters.Oneisanurse,isateacher.

12.Jerry'sfatherisagood.HecanRussianandChinesefoodwell.

15.—doesittakeyoutogettoschool?—Aboutfifteenminutes.

6、二力杆的约束力不一定沿杆件两端铰链中心的连线，指向固定。（）

conversation第9题

conversation第10题