. The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.
| A．found out | B．pointed out | C．ruled out | D．carried out |
Over 300 students from China______ her class every year.
| A．attend | B．run |
| C．exchange | D．approve |
The girl ______ is the tallest in our class sat next to me.
| A．who | B．whom | C．which | D．what |
I can't wait __________ them.
| A．surprising | B．surprised |
| C．to surprise | D．surprise |
The subject________ he is interested is English.
| A．which | B．in which |
| C．at which | D．that |
My father is hard ______ me.
| A．to | B．with | C．of | D．on |