Europe has achieved more in controlling the AIDS virus than Asia in the past ten years, _________ the number of people infected with the virus is going up sharply.
| A．when | B．that | C．so that | D．Where |
—________ you leave your room in such a mess?
—Sorry，Mum.I forgot to tidy it up.
| A．Must | B．Can |
| C．Should | D．Will |
Language learning，________ the expert pointed out in his lecture，is more than remembering words and phrases.
| A．as | B．which |
| C．that | D．what |
Alex changed his mind at the last minute，otherwise we ________ an agreement.
| A．should have reached | B．could have reached |
| C．can reach | D．should reach |
The new driving test seems to be challenging，so the chances ________ he can pass it at the first attempt are small.
| A．how | B．whether |
| C．that | D．where |
He became the ________ of criticism by the readers for his newlypublished book.
| A．target | B．theme |
| C．fortune | D．figure |