--- Bob, you are absent-minded!
--- Oh, I’m sorry I _______ attention to you, Miss Shute.
| A．haven’t paid | B．wasn’t paying |
| C．am not paying | D．couldn’t have paid |
– Is everybody here?
– Not yet… Look, there ____ the rest of our visitors!
| A．comes | B．is coming | C．come | D．are coming |
The scientist’s many years’ careful observation ____ a surprising discovery.
| A．ran into | B．began with | C．led to | D．came from |
Don’t come and see me today – I’d rather you ____ tomorrow.
| A．to come | B．come | C．came | D．coming |
It is clear that your ____ English will greatly improve if you can practice ____ wherever you can.
| A．speaking; speaking | B．speaking; spoken |
| C．spoken; speaking | D．spoken; spoken |
This means going back to the place where we left the family ____ in a tree the night before.
| A．to sleep | B．to be sleeping | C．slept | D．sleeping |