Your parents _______you many things in their lifetime, but you may not realize that until they are gone.
| A．give | B．gave |
| C．have given | D．were given |
I had some problems _____ my homework.
| A．to finish | B．finishing | C．finishes | D．finish |
Can you learn English ________ chatting on the Internet?
| A．in | B．with | C．by | D．for |
He thinks _____ history about Chinese is very important.
| A．studied | B．studying | C．studies | D．study |
How many states _______ the United States? Fifty.
| A．turn up | B．make up | C．end up | D．give up |
My mother is strict both _____ me and ____ her work.
| A．with; with | B．with; in | C．in; in | D．in; with |