'don't be too hard on us为啥要加be?

'don't be too hard on us为啥要加be? Don‘t drive youself too hard Don't make yourself too hard. Don't be too naive! don't be too long . Don't be too hard ( )yourself( )hartingDon't be too hard ( )yourself( )harting feelingsA.on,to B.on,for 正确答案应该是选B但不知道为什么? Don’t Be So Hard On Yourself 1.Don't sit up and work too hard at night or you'll be run_______.1.Don't sit up and work too hard at night or you'll be run___a____.A.apart B.up C.down D.over 一道英文题 don't be too hard () yourself.A.off B.on C.to D.for I don't believe in working too hard Don't be too (s ) out DON'T BE TOO OVERCONFIDENT是什么意思? so don't be too cross with Don't be too wild.(完成反义疑问句） Don't be too wild,_____ _____? Work hard--for my future.的中文-When my dream can come true?-I don't know.-it won't be too long.的中文 Don't blame me too hard blame yourself too hard it is you want to let me go Don't be l____!You have to work hard. Don't be so hard on yourself.中文是什么