–Finish your homework, _______ you can’t watch football games, Sam.
–All right, Mum.
| A．or | B．but | C．so | D．And |
－______ a visit to Beijing this summer holiday?
－That’s a good idea!
| A．Why not | B．Let’s |
| C．Shall we | D．What about |
These animals are in danger．We should think ______ to protect them．
| A．how we can do | B．how can we do |
| C．what we can do | D．what can we do |
Either you or I ______ going there tomorrow．
| A．is | B．be | C．are | D．am |
Our English teacher is kind ________ helpful.
| A．and | B．or | C．but | D．so |
As a doctor, you can’t be ________ careful．
| A．to | B．too | C．also | D．very |