According to the rules，all drivers ________ this traffic accident are to be taken to the police station to make their statements.
| A．sensitive to | B．relevant to | C．accessible to | D．due to |
He wrote ______ song, which turned out to be rather popular with ______ young.
| A．the; the | B．a; 不填 | C．a; the | D．the; 不填 |
They decided to drive the cow away ______ it did more damage.
| A．unless | B．until | C．before | D．although |
No matter how frequently _______, the boy was always in low spirits.
| A．encouraged | B．encouraging |
| C．to be encouraged | D．was encouraged |
I don’t mind her criticizing me, but ______ is how she does it that annoys me.
| A．it | B．that | C．this | D．which |
—Why didn’t you come to Mike’s birthday party yesterday?
—Well, I _____, but I forgot it.
| A．should | B．must | C．should have | D．must have |