----- Mary looks very upset. She _______ failed to pass the exam.
----- I guess so. It's very difficult after all.
| A． must have | B．could have | C．should have | D．might have |
Do you remember me ____ you that same question?
| A．to ask | B．asking | C．to be asking | D．have asked |
When I handed the report to John, he said that George was the person _______.
| A．to send | B．for sending it | C．to send it to | D．for sending it to |
____ wide spread of H1N1 is _____ challenge for the whole world. Confidence, cooperation and responsibility are keys to overcoming it.
| A．A; the | B．A; a | C．The; the | D．The; a |
Would you like to ______ us? We are going to _____ the school’s 20th anniversary celebration.
| A．join in; take part in | B．join in; join |
| C．take part in; join | D．join; take part in |
Great Expectations is ＿＿ in England in the early 1800s.
| A．setted | B．set | C．set up | D．set out |