问题
填空题
词形变换。
1. invite (名词) _____
2. let us (缩写) _____
3. play ground (合为一词) _____
4. match (复数) _____
5. swim (ing形式) _____
6. go (反义词) _____
答案
1. invitation 2. let's 3. playground 4. matches 5. swimming 6. come