Ex1: Present continuous tense (Thì hiện tại tiếp diễn)
1. Miss. Nhung (ride)........is riding..... her bike to work (thấy Miss. Nhung --> is; thấy ride --> riding)
2. ……Are…….You( wait).....waiting.......... for your teacher? (Thấy you --> are; thấy wait --> waiting)
3.I (play).........am playing............. games and my sister (watch) ………is watching...........TV now
(Thấy I --> am; play --> playing; Thấy my sister --> is; watch --> watching)
4.We (wait) ...................are waiting...................for a train now. (Thấy we --> are)
5. He (sit) .....is sitting.......in the living room for coffee every morning (Thấy he --> is; sit --> sitting)