Good friends are like stars. You don’t always see them, ______ you know they are there.
| A．as | B．but |
| C．for | D．then |
---Excuse me, how can I find useful information on the Internet?
--- ________ the information you need, type in the keywords and then lots of websites will appear.
| A．Find | B．To find | C．Finding | D．Found |
---How does your English teacher help you to practice English?
--- By encouraging us to __________ some dialogues with our partner in class.
| A．make up | B．take up | C．look up | D．turn up |
---Who do you think is the man __________ first flew into space in China? --- Yang Liwei is.
| A．/ | B．who | C．that | D．whom |
--- ________ of them knows the answer. What can we do now? --- Let’s ask a third boy for help.
| A．Both | B．Either | C．Neither | D．None |
---Could you please tell me ___________? ---Of course. For over ten months.
| A．how long has he left school | B．how long he has left school |
| C．when he left school | D．how long he has been away from school |