Some insects________the colour of their surroundings to protect themselves.
A. take in B. take off
C. take on D. take out
There is a shortage of teachers in Western China, and it will fall on the 80s and 90s generations to this responsibility.
A. take on B. step up
C. make up D. apply for
Only when he reached the tea-house ______it was the same place he’d been in last year.
A. he realized B. he did realize
C. realized he D. did he realize
Only when he told me________what trouble he was in.
A．did I realize B．I realized
C．do I realize D．I realize
He has decided to settle ____in France because he is fond of the romantic country.
A. temporary B. temporarily
C. permanent D. permanently
There are a number of methods to provide relief from your toothache, which can’t cure the problem.
A. permanent B. temporary
C. contemporary D. consequent
