. If you put too many potatoes in that paper-bag it will _____.
| A．blow | B．explode | C．crack | D．burst |
—Where is the shooting centre?
—It is about 50 kilometres ______ the city of Beijing.
| A．in south of | B．south of | C．the south of | D．southern of |
Though iPhone 4 is such a hit product, I won’t buy one unless its after service ______.
| A．was improved | B．gets improved | C．is improving | D．had got improved |
The 3G cell-phone must be of great use to ____wants to get the information through the
Internet quickly．
| A．who | B．whoever | C．whomever | D．whichever |
—Can you give me some advice on what I said just now?
—Sorry, my mind _____．
| A．has wondered | B．had wondered | C．is wondering | D．was wondering |
I’d appreciate _____ if you would like to teach me how to use the computer．
| A．that | B．this | C．it | D．you |