1. My pen is lost. Can I use __________(you)
2. These__________ are heavy. We can't carry them. (box)
3. The more exercise you take, the __________you will be. (health)
4. ---Are they the __________ parents
---Yes, they are. (twin)
6. We are going to have a picnic unless it __________ (rain).
7. ---What's twenty and twenty
---It's __________. (four)
8. There __________ any rain since the beginning of this month. (not be)
9. The picture __________ to a museum in Beijing in 2004. (sell)
10. Kate did her homework so __________ that she made few mistakes yesterday. (care)
【答案】
1. yours 解析：本空后没有名词，要用名词性物主代词，表示‘你的笔’。
2.boxes 解析：本题谓语是复数的are,要把名词变成复数形式。
3. more healthy 解析：本题考查形容词比较级的常用句型，the + adj./adv.比较级，the + adj./adv. 比较级。
4. twins’ 解析：本题考查名词所有格，表示那对双胞胎的。
6. rains 解析：条件状语从句中，主句用一般将来时，从句用一般现在时表示将来，即‘主将从现’。
7. forty
8. hasn’t been 解析：本题句末有since+过去时间，表示从本月月初到现在，一直没有下雨，用现在完成时比较合适，要注意rain是不可数名词，根据就近原则，应该用 hasn’t been 不用haven’t been。
9. was sold 解析：本题后有in + 过去时间，应该用一般过去时，要注意，画是被卖的，应该用被动语态。
10. carefully 解析：本题中so后面的词是修饰动词do的，应该用副词形式。