Charles Babbage is generally considered _______ the first computer.
| A．to invent | B．inventing | C．to have invented | D．having invented |
Often ________ England's national poet and the "Bard of Avon",William Shakespeare was a famous writer of plays and poems. Some of his most famous plays are Hamlet, Romeo and Juliet, Macbeth.
| A．called | B．being called |
| C．calling | D．to call |
He switched off the light and was about to leave the classroom and only then ________ to rain heavily.
| A．did it begin | B．it began |
| C．does it begin | D．it begins |
Actually, I am not the person who deserves the prize; it should be given to ________ has made great contributions to the project.
| A．who | B．whom |
| C．whoever | D．whomever |
In my childhood, my grandma used to say “ helping others ________ helping yourself”, which ________ a deep effect on me all my life.
| A．mean; have had | B．means; has had |
| C．means; had had | D．mean; had had |
Believe it or not, your ship isn’t quite sunk, as there are some ways to ________ a new career even if it’s something you’ve never done before.
| A．burst into | B．get through |
| C．break into | D．comb through |