----Another cup of tea? That’s your third since lunch.
----Yeah, well, I ____ all night preparing for my history exam. I can hardly keep my eyes open.
| A．have stayed up | B．stayed up |
| C．have been staying up | D．will stay up |
Stay awake！You should know that it ________to sleep in class.
| A．doesn’t permit | B．is not permitted |
| C．will not be permitted | D．was not permitted |
The problem in today’s parenting environment is ____________ many believe it is their job to solve all their children’s problems.
| A．who | B．that | C．which | D．What |
None of us expected the chairman to __________ at the party. We thought he was still in hospital.
A. turn into B turn off C turn down D turn up
I wish there was more information about calories in restaurants. It would make it easier for me to know __________ to eat.
| A．how | B．what | C．when | D．where |
When the thief found the police had already _________ him, he ran away quickly.
| A．realized | B．known | C．spotted | D．stared |