A. might B. could C. should D. must
单项选择题The driver carefully checked his car （） it should go wrong on the way.
A. lest B. or else C. so that D. in order that
单项选择题Only after a baby seal is pushed into the sea by its mother （） to swim.
A. how will it learn B. will it learn how C. it will learn how D. and it learns how
