单选题 (Annoying) at the long check-out lines, the shopper began (to sigh) loudly, tap his (foot), and (glance) at his watch.
  • A. Annoying
  • B. to sigh
  • C. foot
  • D. glance


【正确答案】 A
【答案解析】应为annoyed。完整的句意为the shopper was annoyed at the long check-out lines。