`1.` C. washing dishes
- housedhold chores: việc nhà `->` Chọn `C.` washing dishes: rửa bát
`2.` C. did she do
- Thì QKD - DHNB: yesterday
`3.` A. is writting
- Thì HTTD - DHNB: at present
`4.` D. will have finished
- Thì TLHT - DHNB: By next month
`5.` A. haven't received
- Thì HTHT- DHNB: yet