Our neighbor offered to look after our baby yesterday when we were busy, _____is often the case.
| A．it | B．that | C．which | D．as |
I am very grateful to my high school teachers, without _____help I wouldn’t be so excellent.
| A．whom | B．their | C．which | D．whose |
The hottest continent, Africa has a lot of resources, ______ are still undeveloped.
| A．many of them | B．many of whom | C．many of it | D．many of which |
The number of various educational programs is increasing, _______ important roles have been realized by more and more people.
| A．whose | B．where | C．which | D．that |
It was in the lab ______ was newly built ______ they carried out the experiment.
| A．that; which | B．that; that | C．where; that | D．which; where |
The well-known director, two of________ films won Oscar awards, is said to have retired.
| A．which | B．whom | C．whose | D．his |
He is such a clever student _________ everyone likes.
| A．that | B．who | C．whom. | D．as |
---Why does Jane always ask you for help?
---- There is no one else ________, is there?
| A．who to turn to | B．she can turn to |
| C．for whom to turn | D．for her to turn |
Now there is just one point ________ I wish you to make quite clear.
| A．where | B．which | C．what | D．when |
Everyone will go through life's stages of ups and downs, ________ selfrespect plays a key role in the maturity(成熟) of a person.
| A．when | B．which | C．as | D．that |