选择正确的字母组合补全单词,其中选择正确的一项是: | |||||
A. 1-a; 2-b; 3-d; 4-a; 5-a B. 1-b; 2-b; 3-c; 4-c; 5-a C. 1-a; 2-b; 3-d; 4-c; 5-a D. 1-a; 2-a; 3-d; 4-c; 5-b |
There __________ many children in the park. They are playing __________. |
A. is, happily B. are, happy C. are, happily |