俗话说:“好货不便宜,便宜没好货”。这一观点的合理性在于,它看到了( )
________the temperature falling so rapidly,we couldn't go on with the experiment.
He has made ________that we are proud of him.
Information has been put forward that more middle school graduates will be ________into universities.
In Japan students show great respect ______their teachers and this is true _____Germany.
I would appreciate ________if you could teach me how to use the computer.