a, We learnt  English  hard last year 
(-) : We didn't learn English  hard last year 
(?) : Did we learn English  hard last year ?

b, She is  in class 8B
(-) : She isn't in class 8B
(?) : Is she in class 8B?

c, He drives a car carefully
(-) : He doesn't drive a car carefully
(?) : Does he drive a car carefully?

d,  I  am   a  walker
(-) : I am not a walker
(?) : Am I a walker?
Chú ý: Dấu (-) là câu phủ định; dấu (?) là câu nghi vấn

CHẤM ĐIỂM CHO MÌNH NHÉ