1/1.play→playing( thì QKTD và động từ thương k đi vs tobe )
2. was you study →were you studying
3.do→doing(thì QKTD)
4.went →go(ở dang nghi vấn thì QKĐ động từ nguyên thể)
5.sleep→sleeping( thì QKTD)
6.have→had(thì QKĐ)
7.broke→break( câu phủ định thì QKĐ , sau didn't đtừ nguyên thể)
8.go→wen't(thì QKĐ)
9.am→was(QKTD)
10.turn→turned(QKĐ)
2/(đều là thì QKTD nha)
1. was walking 6.was walking
2 was attending 7.was going
3 was standing 8.was studying-was having
4 was ridind 9.were dancing
5 were living 10.were sitting.
