Question

B - CHANGE INTO NEGATIVE AND INTERROGATIVE
01. I must talk to my friend about her studies.
(-)
(+)
02. She has to explain something to the teacher.
(-).
(+).
03. They had to spell a difficult word.
(-)
(+).
04. The students must attend all classes.
(-)
(+).
​

Answer 1

01. I must talk to my friend about her studies.

(-)I must not talk to my friend about her studies

(+)must i talk to my friend about her studies?

02. She has to explain something to the teacher.

(-).She doesn't have to explain something to the teacher

(+).does she have to explain something to the teacher?

03. They had to spell a difficult word.

(-)They didn't have to spell a difficult word.

(+).did they have to spell a difficult word?

04. The students must attend all classes.

(-)The students must not attend all classes

(+).must the students attend all classes?