To lose weight, Mr White______ hiking as a regular form of exercise after he retired.
A.caught on B.took up C.set out D.made for
The more one is_______ the English-speaking environment, the better he or she will learn the language.
A. exposed to B．filled in C．caught on D．kept up
It’s time that you_____with the relief work in the flood-stricken area after the awful typhoon.
A.must help B.can help C.helped D.have helped
Drunk driving, which was once a frequent occurrence, is now______.
A.under debate B.under control C.under construction D.under investigation
_____snacks and drinks, but they also brought cards for entertainment when they had a picnic in the forest.
A. Not only did they bring B. Not only they brought
C. Not only brought they D. Not only they did bring
When they had finished playing, the children were made to _______ all the toys they had taken out.
A. put off B. put up C. put down D. put away
