14. Over the long process of evolution, animals have developed their ______ senses, which makes it possible for them to _____ their environments.

ool held a respect-parent activity last month, ______ our students benefiteda lot

What do you have________ breakfast— An egg and some bread.

32. 一William has asked me to lend him five pounds．Should I do him the favor andlend it to him—Certainly，otherwise he________to borrow it from me．

, I hate to say it , but you really must go ! –________.