. You _____ return the book now. You can keep it till next week if you like.
| A．can’t | B．mustn’t | C．needn’t | D．may not |
We should ________ adjust ourselves to the development of our society.
| A．strictly | B．hardly | C．occasionally | D．constantly |
The teacher accused her ________ not finishing her homework.
| A．for | B．from | C．of | D．on |
Some students didn’t get a brief summary ________ in their essays.
| A．include | B．included | C．including | D．includes |
In America, turkey is served as the main course on special ________.
| A．occasions | B．situations | C．positions | D．scenes |
Many problems concerning the improvement of our school remain ________.
| A．solving | B．solved | C．to solve | D．to be solved |