--Are you a teacher?
--No, but I ________.
| A．used to | B．was used to | C．used to be | D．used to do |
She caught the student ______ in the exams.
| A．to cheat | B．cheat | C．cheating | D．cheated |
----I’m going to travel to America. Would you consider telling me about your experiences.
---- ____________. Let’s discuss over dinner.
| A．That’s all right | B．By all means |
| C．Go ahead | D．It just depends |
________hard you try, it is difficult to lose weight without cutting down the amount you eat.
| A．Whatever | B．However | C．Whichever | D．Whenever |
I appreciate ______when she offered to help.
| A．it | B．that | C．one | D．ones |
----Does this dress fit Mary?
----I don’t know. She is very _______about what she wears.
| A．especial | B．special | C．particular | D．unusual |