Every possible means ________， but it seems that nothing will prevent the situation from getting worse.
| A．has tried | B．have tried |
| C．has been tried | D．have been tried |
The door opens and there ____.
| A．enter the teacher of English and head teacher |
| B．enters the teacher of English and head teacher |
| C．does the teacher of English and head teacher |
| D．the teacher of English and head teacher enter |
It has been accepted that all the students ____ put on masks before going to school in case they are infected with flu virus.
| A．shall | B．will |
| C．need | D．may |
I’ll go to the party with you ____ you don’t wear those strange trousers.
| A．as though | B．in order that |
| C．in that | D．on condition that |
-I need to put a cross on the map to show ____ that famous hotel is.
-____? Mary’s done it already.
| A．where; Why bother | B．wherever; How come |
| C．what; What for | D．whatever; So what |
When ____ to danger and conflict, men tend to increase blood pressure, ____ nervous or anxious.
| A．exposed; felt | B．exposing; felt |
| C．exposed; feeling | D．exposing; feeling |