34. --Have you ever heard of an American president called Chester A.Arthur?
--No, and he is not mentioned in my history book at all. He seems ______________.
A. to have been completely forgotten B. having completely forgotten
C. to have completely forgotten D. completely forgetting
— Jake told me he was in the museum just now.
— He is actually at home.________, he’s upstairs doing his homework.
| A．Believe it or not | B．In general |
| C．In your opinion | D．In the end |
Only in this way _______ to make improvement in the operating system.
| A．you can hope | B．can you hope |
| C．you did hope | D．did you hope |
— We need an immediate reply.
— I see. I will send the paper to you ________.
| A．after a while | B．sooner or later | C．right away | D．for a while |
The past 30 years__________ the great changes that have taken place in my hometown.
| A．saw | B．was seen | C．have seen | D．see |
There are more than three________ students in our school. Look, _________ students are having a gathering on the square.
| A．thousands of; hundreds of | B．thousand; hundreds of |
| C．thousand of; hundreds of | D．thousand of; hundred of |