[基础知识•夯实] ⅰ. 短语填空 let go; be terrified of; aware of; in between; help sb. out; upside down; sort out; draw close；in the meantime; hold up 1. he was obviously in some kind of trouble, but i didn't know how i could________. 2. she told me to ________ the papers that could be thrown away. 3. the building work has been ________by the bad weather. 4. christmas is________. mother is bus
