Mettez les énoncés suivants à la forme interrogative (?) ou négative (-)

Sujet du devoir

a) She'd read that book when she was a child. (?)
b) She was still packing when he came in. (?)
c) He had the opportunity to go. (-)
d) She'd expected him to answer. (-)

Où j'en suis dans mon devoir

Voici mon travail :

a) She had read that book when she was a child ?
b) When he came in she was still packing ?
c) He had not the opportunity to go.
d) She had not expected him to answer.