HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
11-C 12-B 13-D 16-D 17-C 18-C 19-C 20-C
21.Daniel has always enjoyed using computers
22.He started using them at school
23.He has been using it for about two years
I (watch) was watching TV while my brother (read) was reading last night