1.________ will you travel to this summer ? I haven't decided yet
A : where B: What C: Who
2. _______ did you sell yesterday ?- Bread and cupcakes
A: What B: Who C: Which
3. _______ dress did she buy ?- The red or the blue one ?
A:What B: Whose C: Which
4.________ is playing the piano upstairs ?
A: Who B: Whose C: Whom
5. To _______ should i address the letter ?
A: Who B: Whose C: Whom
( giúp mk nhó mấy pạn )