判断下列各组单词划线部分读音是否相同，相同的打∨，不同的请找出来，将字母编号写在括号里。
（1）A.mouthB.flower C.downD.know
（2）A.hair B.bearC.wear D.pair
（3）A.water B.watchC.whatD.clock
（4）A.heavyB.catC.petD.chess
（5）A lunch B.musicC.underD.cut
找出下列句子中的错误，并改正。
Tom _______ things. Now he is making a toy plane.
| A．like make |
| B．likes make |
| C．like making |
| D．likes making |
Li Ming _______ on the _______ floor.
| A．live , three |
| B．living , there |
| C．lives , third |
| D．lives, there |
The pupils of our school ______ to visit Liantang Farm tomorrow.
| A．go | B．goes | C．is going | D．are going |