The old man ___live with his wife, but now he ___ alone after she died .
A.used to, is used to live B.used to, is used to living
C. was used to, used to live D used to, used to live
She’s good at _____.
| A．read | B．reading | C．to read | D．reads |
— _____ you stay in America every summer?
—For two months.
| A．How many | B．How often |
| C．How long | D．How |
Mary isgirl, but she knows a lot about science.
| A．a eight-year-old | B．eight-year-old |
| C．eight years old | D．an eight-year-old |
Find the answer _____ the question, please.
| A．of | B．with | C．to | D．for |
It is a good time _____.
| A．sing | B．to sing | C．singing | D．sang |