--- I hear Warren _____ in a middle school.
--- What? I can’t imagine him _____ as a teacher.
| A．teaches; working | B．teaches; work |
| C．teach; to work | D．teach; working |
On the graduation day, he received from his father a nice present ______ a note was attached, saying “I’m proud of you.”
| A．on which | B．to which |
| C．with which | D．in which |
We should do what we can to save those _____ species, including the tiger, an animal which was considered _____ to humans.
| A．dangerous; endangered | B．dangerous; in danger |
| C．endangered; in danger | D．endangered; dangerous |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
A. can; mustB. can; may
. must; can D. may; must
I am not fond of ______ music very much, but I do like ______ music they are dancing to.
| A．不填; 不填 | B．the; the |
| C．the; 不填 | D．不填; the |
A survey has found that many medical workers would not choose the profession __________ a second chance, citing high stress and tense patient-doctor relationships.
| A．they were given | B．they will give |
| C．they should give | D．should they be given |