Every few years, the coal workers their lungs X-rayed to ensure their health.
| A．are having | B．have | C．have had | D．had had |
The boy is very poor. Could you offer him the old camera_______ ?
| A．for freely |
| B．free charge |
| C．for free |
| D．of free |
This was such a _______ test_______ few of the students could work out.
| A．easy; that |
| B．challenging; as |
| C．tough; that |
| D．exciting; as |
New books have been given out to the students, _______is happy with the books.
| A．each of them |
| B．each of whom |
| C．that |
| D．whom |
We _______of the decision until midnight.
| A．got informed |
| B．didn't inform |
| C．were not informed |
| D．were informed |
Many newly found old things _______ in the museum this month.
| A．are being on show |
| B．are displaying |
| C．are being displayed |
| D．being on show |