2. The teacher told us to keep the classroom clean and _______.
(A) dirty
(B) tidy
(C) noisy
(D) wet
答案:登入後查看
統計: A(22), B(141), C(10), D(7), E(0) #3814427
統計: A(22), B(141), C(10), D(7), E(0) #3814427