下列每组四个单词中，根据它们的意义找出一个与其它三个不同类的单词，把它们的字母编号写在左边的括号中。
（1）A.red B.leg C.black
（2）A.show B.touch C.foot
（3）A.Zoom B.ruler C.Sarah
（4）A.bag B.white C.green
（5）A.body B.wave C.shake
He likes to play _______the guitar ______the piano.
| A．not; or |
| B．not only; but also |
| C．both; or |
| D．either; and |
---How many times _____you ______to Xi’an this year?
---Three times.
| A．have; been |
| B．had; been |
| C．have;gone |
| D．had; gone |
The doctors are trying their best to save the _____ boy.
| A．dead | B．dying | C．died | D．diing |
Help _____ to some bananas, children.
| A．you | B．yourself | C．yours | D．yourselves |
We heard the girl _____ over there just now.
| A．sings | B．singing | C．to sing | D．sang |