题目：
| 用方框中所给动词的正确形式填空。 | |
| |
| 1.My parents never agreed ________ (invite) my classmates to our home. 2.When something ________ (worry) my uncle, he always has a drink of wine in a bar. 3.Don’t you think ________ (ski) is as dangerous as skating? 4.I don’t know how ________ (solve) the maths problem. Can you help me? 5.Look! How happily the children ________ (play) hide-and-seek over there! |
答案：
1. to invite 2. worries 3. skiing 4. to solve 5. are playing
