－What are on show in the museum?
－Some pictures ____ by middle-school students.
A. taking B. having been taken 
. taken D. being taken
The pale face of my friend suggested that he ______ in poor health, and I suggested that he ______ to see a doctor.
| A．is; went | B．was; goes | C．should be; go | D．was; go |
______ is obvious that reading in bed does great harm to your eyes.
| A．This | B．That | C．They | D．It |
Anything ______ could be found has been used to repair the damaged bridge.
| A．that | B．which | C．when | D．what |
The concert last month was ______ that all the audience wanted to attend it once again.
| A．so success | B．such success | C．so a success | D．such a success |
______ the stage design was terrible, the special effects were disappointing.
| A．As | B．Unless | C．Although | D．As soon as |