unit 2 healthy eating section c using language 题组ⅰ ⅰ.单项填空 1. if your knowledge can be in some way _________ with my experience, we are sure to succeed. a. joined b. united c. connected d. combined 2. even though he is a disabled man, he tries hard to _________ by selling trees. a. earning livings b. earn his living c. earn livings d. to earn his living 3. if traffic moves at low speeds, the number of accidents will be _________. a. pulled back b. cut down c. turned down d. put away 4. for the _________ of the economica
