－John’s English is very good.
－Yes. I want to know ____________.
| A．when he started to learn English. |
| B．when did he start to learn English |
| C．how long did he learn English |
| D．how long he learn English |
You’d better choose this purple tee shirt to buy. It looks so good _________ you.
| A．in | B．on |
| C．for | D．with |
-- Is this Tom and Sam’s room?
-- No , it’s ours. _________ is on the fifth floor.
| A．He | B．His |
| C．They | D．Theirs |
The _________ of the building was so strong that it didn’t fall down in the terrible earthquake.
| A．design | B．feature |
| C．structure | D．programming |
--Do you think ________ ending of the story is surprising?
--No, not at all. I can guess it.
| A．a | B．an |
| C．the | D．不填 |
Most children are interested in amazing things, and they wonder ______.
| A．When can they see UFOs. |
| B．how can elephants walk on tiptoe |
| C．why do fish sleep with their eyes open |
| D．why there is no plant life without lightening |