－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 |
In those days bikes were not ______ used because few people could afford (负担起) to buy one.
| A．quickly | B．hardly | C．widely | D．nearly |
Jenny keeps two pets. One is a dog, ______ is a rabbit.
| A．another | B．an other | C．the other | D．other |
Which of the following signs is used to tell people to save water?
A． |
B． |
C． |
D． |
He was ______ tired ______ go on walking.
| A．so, that | B．such, that | C．too, to | D．as, as |
Have you ever read books ______ by Lu Xun?
| A．writing | B．written | C．are written | D．writes |