According to the air traffic rules, you ___ switch off your mobile phone before boarding.
| A．may | B．can | C．would | D．should |
We can’t do it that way --- but whether it will work is ______ matter.
| A．other | B．another | C．each | D．every |
--______ 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 |