1,I can't help (85. feel) _____________________sorry for the hungry children. If only there (86. be) _________ peace in the world(chia động từ ) 2,I was just about (90. leave) ____________________________ the office when the phone rang.(chia động từ) 3,I had nothing to ________, so I decided to keep silent. A. say B. tell C. talk D. speak 4They said that they (work) ……………………………………..there for twenty-nine years and they would stop working the following year(chia động từ) giải thích giúp mk nha