I don’t know _____ he will come tomorrow, ______he comes, I’ll tell you.
A.if…whether
B. whether…whether
C. whether..if
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 |
—_____will you stay here? —Until tomorrow afternoon．
| A．How long | B．How soon | C．When | D．How often |
My shoes are worn out．They need_______．
| A．to repair | B．be repaired | C．repaired | D．Repairing |