You can only be sure of_____you have at present;you cannot be sure of something_____you might get in the future.（）
| A． | that;what | B． | what;/ |
| C． | which;that | D． | /;that |
I have a busy life with no time to sit around _____ sorry for myself.
| A．feel | B．to feel |
| C．feeling | D．and felt |
I think I had at least a billion tests, including _____ in which they cut out a piece of muscle from my leg and looked at it under a microscope.
| A．that | B．the one | C．it | D．one |
With a lot of difficult problems _________, the manager felt like a cat on hot bricks.
| A．settling | B．to settle |
| C．being settled | D．settled |
____, sometimes I am very clumsy and drop things or bump into furniture.
| A．In addition to | B．Except for |
| C．What more | D．In addition |
Her ambition is _____ part of the national team for the next Paralympic Games.
| A．of becoming | B．becoming |
| C．to become | D．that become |