31. _____his being late again,he lost his job and had to stay at home.
| A．Owe to | B．As result of | C．In case of | D．Because |
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 |
Knowing their son failed in the exam, the parents stood there, ________.
| A．looked disappointed | B．looking disappointed |
| C．looked disappointing | D．looking disappointing |
Everyone was silent as the organizer ________ the result of the speech competition.
| A．announced | B．pronounced | C．arranged | D．instructed |
After a few courses on painting, Helen said she would ________ oil painting in her spare time.
| A．look up | B．bring up | C．take up | D．put up |