The math problem is really difficult for us_________.
| A．to work it out | B．to work out |
| C．to work out it | D．working it out |
一I hope you’ll have a good journey．—________
| A．Well done | B．Don’t mention it |
| C．Certainly | D．Thank you very much |
________your new home ________ ?
| A．What；like | B．What’s；1ike | C．How；like | D．How does；like |
The room is big enough for us _________ .
| A．to live | B．living in | C．to live in | D．live in |
That tennis ball is one of ___________.
| A．Jane fathers | B．Jane’s fathers’ |
| C．Jane father’s | D．Jane’s father’s |
She is short．So she sits________ the classroom．
| A．in the front of | B．in front of |
| C．at the back of | D．next to |