Charles Babbage is generally considered to _______ the first computer.
| A．to invent | B．inventing | C．to have invented | D．having invented |
____with so much trouble, we failed to complete the task on time.
| A．Faced | B．Face | C．Facing | D．To face |
Could you please tell me where you bought the shoes you ________ yesterday?
| A．tried on | B．put on | C．had on | D．pulled on |
I really can't understand ______ her like that.
| A．you treat | B．you to treat | C．why treat | D．you treating |
.Oil prices have risen by32 percent since the start of the year, ______ a record US $57.65 a barrel on April 4.
| A．have reached | B．reaching | C．to reach | D．to be reaching |
It was a pity that the great writer died _________his works unfinished.
| A．for | B．with | C．from | D．of |