Science is _____ difficult for some students ____ learn, so many of them don’t like it.
| A．enough, to | B．too, to |
| C．so, to | D．much , to |
—Oh, dear! I forgot my best friend’s birthday.
—Better keep it in mind next year.
| A．You did? | B．Why not? |
| C．Never mind. | D．No problem. |
—Summer holiday is coming. What’s your plan, Jim?
—I haven’t decided .
| A．that I stay at home and read some books |
| B．whether I can take a course to lose weight |
| C．where will I travel abroad with my parents |
| D．when will I volunteer at the home for the elderly |
—Have you seen my watch anywhere, Lucy?
—Is it the one your uncle bought for you in Hong Kong?
| A．who | B．what | C．that | D．when |
Lots of people like to take a walk on Nanjing City Wall since it .
| A．repaired | B．was repaired |
| C．has repaired | D．is repaired |
—Amy, I think you have to return the book to the library today.
—Why? I it for only one week.
| A．borrowed | B．have borrowed |
| C．kept | D．have kept |