How much difficulty did you have ________________ this problem?
| A．to solve | B．solved | C．solving | D．solve |
The panda is a kind of animal _____ can be found only in China.
| A．who | B．whose | C．which | D．where |
- Mom, shall we have dinner now?
- No, we don’t have dinner _____ your father comes back.
| A．until | B．since | C．while | D．after |
_____ soldiers and doctors have been in Wenchuan to help the people there.
| A．Thousand of | B．Two thousands |
| C．Thousands of | D．Many thousands of |
- Which would you like, coffee or cola?
- _____, thanks. I’d like a cup of tea.
| A．Either | B．Both | C．None | D．Neither |
----Let’s play table tennis after school. ----.
| A．OK. Sorry | B．OK. Good idea |
| C．Go, play | D．Yes, of course |