--Why do you look pale today?
--I was very ________my mother’s illness. I stayed awake last night.
| A．concerned about | B．concerned with |
| C．concerned in | D．concerned to |
--______ is your father? Does he still work as an engineer? --Yes, he has been an engineer for thirty years.
| A．Who | B．How |
| C．What | D．Which |
I’d like to know _____. –Maybe in the forest.
| A．whether we will go camping |
| B．where we will go camping |
| C．whether will we go camping |
| D．where will we go camping |
He has _____ arms now and is able to pick the table up with one hand.
| A．weakest | B．weaker |
| C．strongest | D．stronger |
We planned to meet at 10:30 at the station last Sunday, but Bob didn’t ______ until 12:00.
| A．turn up | B．give up |
| C．stay up | D．grow up |
The running water makes the stones ______ very smooth.
| A．sound | B．taste | C．smell | D．feel |