I___ my pen.I have to write with a pencil.
| A．lost | B．have lost | C．lose | D．am lost |
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 |
An army spokesman stressed that all the soldiers had been ordered ____ clear warnings before firing any shots.
| A．to issue | B．being issued | C．to have issued | D．to be issued |
He is ___ with the striking workers.
| A．sympathy | B．synthetic | C．sympathetic | D．sympathize |