All ___ can be done has been done.
| A．what | B．that | C．which | D．the one |
__________ you are old enough to judge things, you should decide your path in life.
| A．Since | B．In order that | C．Though | D．Unless |
In __________ it’s not shocking to see students in __________ on college campus.
| A．1990s; sixties | B．the 1990s; their sixties |
| C．the 1990s; the sixties | D．1990s; their sixties |
– Tom, you left the lights in the classroom on.
– Oh, sorry, I _________ to turn them off. Thanks for your reminding.
| A．will return | B．am going to return |
| C．am returning | D．return |
She didn’t run off the stage. __________, she finished the performance with a smile on her face.
| A．However | B．Instead | C．Otherwise | D．As a result |
Boys and girls, matters _________ your study surely need to be dealt with carefully.
| A．relating to | B．relating with | C．related to | D．related with |