—Thank you for joining in our conversation tonight. —--_____ .
A．It’s my duty B．It’s all right
C．It’s my pleasure D．With pleasure
“ They went to the lecture, but it had been put off.” “ Oh, so they _______.”
A．needn’t have gone B．should have gone
C．mustn’t have gone D．don’t need to go
It’s difficult for him to without a car.
A．get off B．get in C．get on D．get around
By no means ___to your parents.
A．is this the first time you are lying
B．this is the first time you have lied
C．this is the first time you tell a lie
D．is this the first time you have lied
We_______on this project for four hours. Let’s have a rest.
A．are working B．have been working C．worked D．had worked
Many people believe we are heading for environmental disaster _____ we basically change the way we live.
A．but B．although C．unless D．once
