__________ has finished the work ahead of time will be rewarded though we don't know who it will be.
| A．Those who | B．Anyone |
| C．Whoever | D．No matter who |
Farmers in Kaifeng grow a lot of peanuts every year, some of __shipped to foreign countries．
| A．them | B．which | C．it | D．what |
Always read the ___ on the bottle carefully and take the right amount of medicine．
| A．explanations | B．descriptions |
| C．introductions | D．instructions |
—Have you ever visited the Opera House?
—Yes．When I was in Sydney, I___it twice．
| A．had visited | B．visited | C．have visited | D．would visit |
In recent years,___global warming is becoming___concern for people all over the world．
| A．the; the | B．不填；不填 | C．不填；a | D．the; 不填 |
What I need is nothing but an interesting book,___ that can kill the time tonight
| A．it | B．that | C．one | D．the one |