一How did you break my most valuable vase?
一Sorry,but I broke it by accident．
| A．the；／ | B．the；an | C．／：／ | D．／：the |
The dress is made of silk．It _________．
| A．is felt smooth | B．is felt smoothly | C．feels smooth | D．feels smoothly |
—May I use your computer, Mr WU? —______．
| A．Yes, you may not | B．No, you may | C．Yes I may | D．No, you may not |
This dress still looks pretty on you, _______ it is out of style．
| A．but | B．though | C．since | D．unless |
— Is Lily good at singing? —Yes , she is．We often hear her_______ in the next room．
| A．sing | B．to sing | C．sang | D．Sings |
— Will you go to Sandy’s birthday party? — I won’t go unless Tony______．
| A．was invited | B．has invited | C．is invited | D．will be invited |