I made a promise to myself _______ this year, my first year in high school, would be different.
| A.whether | B.that | C.what | D.when | 
—Have you been wasting time on computer games again?
 —_____. I’ve been studying a lot and I need a break.
| A.No way | B.Not really | 
| C.I don’t agree | D.I couldn’t agree more | 
Faced with a bill for $10,000, _____.
| A.Smith has taken an extra job | B.the boss has given Smith an extra job | 
| C.an extra job has been taken | D.an extra job has been given to Smith | 
This is a very interesting book. I’ll buy it, _____.
| A.how much may it cost | B.no matter how it may cost | 
| C.however much it may cost | D.whatever may it cost | 
—English has a large vocabulary, hasn’t it?
 —Yes. _____ more words and expressions and you will find it easier to read and communicate.
| A.Known | B.Knowing | C.To know | D.Know | 
_____ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A.Being separated | B.Having separated | 
| C.Having been separated | D.To be separated |