The report said a bus went out of ____control on a highway ____south of the city and rushed into a river.
| A．the ,the | B．/ ,the | C．the, / | D．/,/ |
It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
| A．that | B．when |
| C．what | D．how |
Country life gives him peace and quiet, which is ______ he can’t enjoy while living in big cities.
| A．that | B．why |
| C．where | D．what |
“What were you trying to prove to the police？” “___ I was last night.”
| A．That | B．When |
| C．Where | D．What |
It has come to my notice _______ some of you have missed classes.
| A．what | B．which |
| C．that | D．when |
Patience is a kind of quality — and that is ___A___ it takes to do anything well.
| A．what | B．which |
| C．which | D．how |