__ Sally , our monitor , was late for class this morning .
__ _________ ? As far as I know , she never came late for class.
| A．How come | B．what for |
| C．So what | D．Why not |
Chemical processesin the treatment of materials for clothes the environment badly in some countries nowadays．
| A．involve；damaging | B．involved；damaged |
| C．involving；damage | D．involved；damage |
From the situation in this financial crisis，you can seeChina is totally notshe used to be a century ago.
A．／：that B．that；what C．which；that D whethe’that
I iust don't understandthat leads to so many teenagers becoming addicted to playing computer games·
A．why it does B．what it does C．what it is D·why it is。
We’ll buy a11 the products in your storehouse，of course the price is reasonabte．
A．provided B．unless C．though D·until
Usain Bolt，best runner，ranfastest in last race in the 2008 Olympic Games．
A．／；／；the B．the；／；／ C．the；／；the D·the；the；／