Professor Li always allows his students to voice their opinions in class, ______ sometimes their opinions are not sound.
--Shall I have another look at the flat and tell you more about it?--__________. I’ll telephone the salesgirl for details myself later.
Bad program on TV may have bad _____ on children.
Was it in 1996 _____ the American astronaut succeeded _____ landing on the moon?
The news _____ the football team won the game made us happy.