Don’t say any more; we all believe the facts than your words. What you have explained doesn’t make _____.
We should do what we can to save those _____ species, including the tiger, an animal which was considered _____ to humans.
—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 survey has found that many medical workers would not choose the profession __________ a second chance, citing high stress and tense patient-doctor relationships.
— Was it 11 o'clock your father came back last night? —Yes, he is always coming back so late.