Mr. Smith has three children, the youngest of them music at college.
| A．studying | B．is studying |
| C．studies | D．studied |
I didn't see your sister at the party. If she __, she would have met my brother.
| A．has come | B．had come | C．did come | D．came |
— Oh, my cat is really fat.
— You __ have given her so much food.
| A．wouldn't | B．mustn't | C．couldn't | D．shouldn't |
— Can you __ what these characters on the rock are?
— Not really.
| A．carry out | B．make out | C．come out | D．go out |
It is said that they __ $ 200, 000 for the house up to now.
| A．will offer | B．are offering | C．offer | D．have offered |
__ his telephone number or e-mail address, she had some difficulty getting in touch with John.
| A．Not knowing | B．Not to know | C．Not known | D．Not having known |