1.This made me ____ about differences in food cultures between China and western countries

1.This made me ____ about differences in food cultures between China and western countries
A.tell B.talk C.think D.feed
2.The ____ you are,the ____ mistakes you'll make.
A.more carefully,fewer B.more careful,fewer
C.more carefully ,less D.more careful,less
3.How long ____ Nancy _____ yesterday?
A.has,been skating B.was.skate C,did.skate D.has,skated
4.He is very busy and free time is ____ he wants
A.that B,what C.which D.how