阿摩線上測驗
1. The little boy got lost. Not _______ what to do next, she burst out crying.
(A) knew
(B) to know
(C) known
(D) knowing
答案：登入後查看
統計： A(21), B(36), C(16), D(479), E(0) #2199405
統計： A(21), B(36), C(16), D(479), E(0) #2199405
