52. _____ I went to the hospital to see Jack, who had _____ had an operation.
| A．Just now; just now | B．Just now; just | C．Just; just | D．Just; Just now |
The number of people invited ____ fifty, but a number of them ____ absent for different reasons.
| A．were , was | B．was , was | C．was , were | D．were , were |
---When _______for Guangzhou?
---Next Monday evening.
| A．are you leaving | B．were you leaving |
| C．you are leaving | D．you were leaving |
Berners-Lee ________ the idea of the World Wide Web in 1989 while working in Switzerland.
| A．caught up with | B．came up with |
| C．looked forward to | D．put off |
— Mr White has been working all the morning with no rest.
— He is a(n) ________ man. He never looks tired.
| A．energetic | B．powerful | C．lovely | D．attractive |
Tom made _____ great progress last semester and as _____ result, he was praised by the teacher.
| A．a; a | B．a; / | C．/; / | D．/; a |