The man ____ visited our school yesterday is from London.
| A．who | B．which | C．whom | D．when |
The managing director promised that he would _____ me as soon as he had any further information.
| A．communicate | B．notice | C．notify | D．note |
These plastic flowers look so _____ that many people think they are real.
| A．beautiful | B．natural | C．artificial | D．similar |
When the big bills for mother’s hospital care came, father was glad he had money in the bank to _____.
| A．fall short of | B．fall through |
| C．fall back on | D．fall in with |
. It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
| A．process | B．attention | C．measure | D．part |
The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
| A．acquainted | B．informed | C．enlightened | D．advised |