he prevented /promised/protected/pretended to study hard alt

he prevented /promised/protected/pretended to study hard alt what he needs is to study hard He pretended to be working hard when his mother entered his he promised to He has promised to surf the Internet to help study,but but e 请问：The boy pretended to be working hard.中为什么用pretended而不用pre I hope he ____up his mind to study hard. He decided to study hard this term.同义句子 He must_(try)his best to study hard at English how to study hard? He hopes ＿＿?A,to us to study hard B,us to study hard C,we to And he must study hard