Hi, as I soon for Nicaragua to do some research, I would love to hear your suggestions

do you think he solved the problem in such a short time— With Mr. Li’s help.

My younger brother dreams ________________ a spaceman.

Obama, who came into _________ power on January 20, 2009, was awarded_________2009 Nobel Peace Prize

Fred entered without knocking and, out of breath, sank________ a chair.[ ]