Children’s brains can’t develop properly_______ they lack protein.
| A．when | B．since | C．because | D．unless |
“Look at that lady on the stage. She’s already forty.” “You are joking. She doesn’t look ________.”
| A．so | B．it |
| C．that | D．this |
Why don’t you bring ______ to his attention that you are too busy to do it?
| A．this | B．what |
| C．that | D．it |
They live on a busy main road. ______ must be very noisy.
| A．There | B．It |
| C．That | D．They |
They are good friends. _______ is no wonder that they know each other so well.
| A．This | B．That |
| C．There | D．It |
Does ________ matter if he can’t finish the job on time?
| A．this | B．that |
| C．he | D．it |