----_____do you improve your listening? ----I improve it ______ listening to tapes.A. How; with B: What; with C: How; by D. What; by
.________ be sent to work in Beijing?
.The forest guard often find campfires that had not been _______ completely.
Every means has been _______. No one is effective.
She is disappointed to find her dress old-fashioned ________.
.The poor young man is ready to accept _______ help he can get.