By the middle of the 1920s the farthest corners of the earth explored.
| A．are | B．were | C．have been | D．had been |
---Do you really want to go out?
---It may rain．________ I shall go out; I don’t mind the rain．
| A．Anyway | B．Otherwise | C．Somehow | D．Therefore |
There’s no _____ from my bedroom window except fro some factory chimneys．
| A．view | B．scenery | C．sight | D．Look |
_____ and happy, Tom stood up and accepted the prize．
| A．Surprising | B．Surprised | C．Being surprised | D．To be surprised |
——Could I use your English dictionary for a few moments?
—— ________．I’m not using it myself．
| A．Come on | B．It depends | C．Go ahead | D．That’s great |
_____ private cars are bringing us convenience, they may also cause more traffic accidents and pollution.
| A．While | B．As | C．If | D．Since |