Without facts, a person can not form a correct opinion, for he needs to have actual knowledge ______his thinking .
| A．on which to be based | B．on which to base |
| C．which to be based | D．which to base |
Every weekend, there is a meeting and our head teacher, with five of us, ____ it.
| A．attends | B．to attend | C．attend | D．attending |
– 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 |