.
–Who has broken the window in my room?
--Who else ___ it but your naughty son!
| A．could do | B．could have done | C．might do | D．must have done |
My name is Robert， most of my friends call me Bob for short．
| A．then | B．instead | C．however | D．but |
I ran an old friend of mine yesterday，whom I hadn’t seen for ages．
| A．across | B．cross | C．after | D．for |
She thought I was talking about her daughter，，in fact，I was talking about my daughter．
| A．whom | B．where | C．which | D．while |
He decided to the matter himself．
| A．look through | B．look into | C．look after | D．look up |
Let’s walk over——the sun．
| A．in | B．to | C．under | D．by |