Đáp án
1. Play -> to play
2. Shop -> shopping
3. Buy -> buying
4. Join -> joined
5. improving -> improve
Giải thích các bước giải :
1. đứng trước và sau as well as là 2 loại từ giống nhau nên play as well as to study -> to play as well as to study
2. go shopping : mua sắm
3. like + V -ing nên Buy -> buying
4. has +V-ed nên Join -> joined
5. want to V : muốn làm gì nên improving -> improve