29. In the early morning, the street sweepers clean the ______ leaves and garbage on the pavement.
(A) fell
(B) falls
(C) fallen
(D) falling
答案:登入後查看
統計: A(8), B(7), C(170), D(63), E(0) #2062552
統計: A(8), B(7), C(170), D(63), E(0) #2062552