ENGL140 ALfarhan, Khalid - Week 5 3\5

 The question number (6) .This was the question for number (6) I usually drop my rent payment (at / on / in) the mail on the first of the month). I have chosen (at). My answer was wrong. The correct  answer was (in) because The preposition in is used before a noun indicating an enclosed space. Exercise 44-2) the question number (1).  This was the question for number (1) (Officer Boomer was knocked to the ground by the recoil. His still smoking gun went spinning down the alley). ,I have chosen (Officer Boomer was knocked to the ground by the recoil. His still smoking gun went spinning down the alley). My answer was wrong. The correct  answer was Officer Boomer was knocked to the ground by the recoil. His still-smoking gun went spinning down the alley . because  A hyphen should be used to connect two words functioning together as an adjective before a noun: still-smoking