complete
| A．scene | B．elect | C．student | D．respect |
–Why, Jack, you look so tired!
--Well, I ___the house and I must finish the work tomorrow.
| A．was painting | B．will be painting |
| C．have painted | D．have been painting |
–Well, Randy is not quite ready to make a decision.
--So, ___, we have to wait, right?
| A．on the other hand | B．in other words |
| C．for example | D．in some ways |
The Group of Eight(G8) __ the eight richest countries in the world.
| A．consists of | B．is consisted of |
| C．is made up | D．consist in |
The company earned a lot of money. As a result, the members’ personal income rose by a/an __ of 13 percent.
| A．average | B．ordinary | C．common | D．usual |
With the help of high technology, more and more new substances ___in the past few years.
| A．discovered | B．have discovered |
| C．had been discovered | D．have been discovered |