— Who is ________ the patient? — Maybe his sister.
| A．taking care | B．looking for |
| C．joining in | D．attending on |
Come and see me whenever ______.
| A．you are convenient | B．yo u will be convenient |
| C．it will be convenient to you | D．it is convenient to you |
The thought ______ he might fail in the exam worried him a lot.
| A．when | B． which | C．that | D．what |
The noise was so ______ that he was so ______ that he stayed awake the whole night.
| A．disturbing; disturbed | B．disturbed; disturbing; |
| C．disturbing; disturbing | D．disturbed; disturbed |
It suddenly ______ to me that we could use a computer to do the job.
| A．took place | B．occurred | C．came about | D．happened |
______ is known to us all that the 2012 Olympic Games will take place in London.
| A．As | B．What | C．Which | D．It |