There must have been something wrong with the society _______ no one offers to help those who are in trouble.
| A．when | B．where | C．which | D．that |
We have to produce more food to _______ the demand of the ever-growing population.
| A．suit | B．fix | C．meet | D．respond |
--- Hi, Grandma, why do you look so tired?
--- I’m tired. I _______ the cleaning all morning.
| A．did | B．had done | C．have been doing | D．have done |
_______ , he didn’t attend the meeting.
| A．He was busy | B．He being busy | C．Because of busy | D．Being busy |
While standing there, I found the strange eyes _____ me.
| A．fixed upon | B．looked at | C．stared at | D．glared at |
_______ the night they had prepared a lot of wonderful programmes.
| A．For | B．At | C．On | D．Of |