The men will have to wait all day _____ the doctor works faster..
| A．if | B．unless | C．whether | D．that |
He went to the library ____ last night, but you broke your word.
| A．in time | B．in need | C．on earth | D．in truth |
We have to __________finding a solution.
| A．set about | B．set down | C．set out | D．set up |
His aunt’s letters ___of those beautiful days when they used to live together in his hometown.
| A．call him on | B．call him for | C．call him up | D．call him up 。 |
When seeing a stone in front of the car, _____.
| A．the car stopped | B．the car was stopped |
| C．the driver stopped the car | D．the car was stopping |
Smith wrote an article on ____ he failed to pass the exam.
| A．why | B．that | C．who | D．what |