相关试题
---Is Bob still performing?
---I’m afraid not. He is said ___ the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |
The scientist ___ his research for a lack of fund.
| A．deserted | B．c anceled |
C．abandoned | D．quilted |
Charles Babbage is generally considered ___ the first computer.
| A．having invented | B． inventing | C．to have invented | D．to invent |
I send you 100 dollars today, the rest ___ in a year.
| A．follows | B．followed | C．to follow | D．being followed |
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