19. The competition is very fierce, so it’s difficult for us to ________ which team will succeed.
(A) explore
(B) tell
(C) repair
(D) deny
答案:登入後查看
統計: A(44), B(328), C(34), D(27), E(0) #1406315
統計: A(44), B(328), C(34), D(27), E(0) #1406315