The reason_________ he didn't come was _________ he had to take care of his sick mother.
| A．why ; that | B．why ; which |
| C．which ; why | D．that ; for |
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 |
It wasn’t until a month later ____ I received his letter.
| A．that | B．since | C．when | D．as |
They wanted to charge $6,000 for the house, ____ we managed to bring the price down.
| A．but | B．so | C．since | D．when |
A great performance was held on the campus of Beijing University on the night of May 4 and was given ____ coverage by the CCTV.
| A．alive | B．lively | C．life | D．live |