After the discussion, the students asked their teacher next.
| A．which to do | B．what to do | C．how to do | D．when to do |
下列各组单词中，画线部分发音不同于其它三个的单词是______。
| A．ball | B．sofa |
| C．four | D．Morning |
含有相同音素的一组字母是______。
| A．H, G, K | B．Q, U, O |
| C．N, S, X | D．J, I, Y |
— Are you willing to live on Mars（火星） one day?
— ______________ It sounds exciting, but it still worries me.
| A．Of course I am. | B．I’m not sure. |
| C．Why not? | D．Are you joking? |
Shanghai is bigger than ________ in Japan.
| A．any other city | B．any city |
| C．all the other cities | D．all the city |
_________ make any noise. Your mother is reading books.
| A．Not | B．Be not | C．No | D．Don’t |