According to a study carried out by an American university, when you eat has ______ on your mood as ______ you eat.
| A．much of as an effect; what | B．much of as an effect; which |
| C．as much of an effect; what | D．as much of an effect; which |
— I don’t know whether I should go abroadornot, Mum.
— I leave _______ to your own judgment whether you should do it.
| A．that | B．it |
| C．this | D．what |
_______ is well known _______ Hong Kong returned to China on July 1st, 1997.
| A．It, that | B．As, / |
| C．As, as | D．It, which |
The Parkers bought a new house but ______ will need a lot of work before they can move in.
| A．they | B．it |
| C．one | D．which |
It used to be thought _____ the Earth was flat.
| A．as | B．when |
| C．since | D．that |
He made _____ known to his friends that he didn’t want to enter politics.
| A．that | B．it |
| C．himself | D．him |