I was so familiar with him that I recognized his voice I pick up the phone.
| A．while | B．after |
| C．in case | D．the instant |
It isn't decided yet _______ we will attend the meeting.
| A．if | B．why | C．that | D．whether |
It takes time to build ______ when you are learning a difficult skill.
| A．confidence | B．strength | C．energy | D．belief |
Four-fifths of the crop ______.
| A．are ruined | B．was ruined | C．were ruined | D．have been ruined |
You must be careful when ___ on the highway.
| A．you driving | B．are driving | C．driving | D．you were driving |
She sat in the chair, ______ the newspaper.
| A．read | B．being read | C．to read | D．reading |