【用戶】業精於勤，事立於豫
【年級】研一下
【評論內容】It is important ________ in your assignments on time. (準時完成作業是很重要的。)(A)to turn (B)turn (C)turning (D)turned虛主詞用法，It is + adj. + to V，後面的 to V 才是真主詞，使用 V-ing 不正式也較為少見。所以本題也可改寫為，To turn in your assignments on time is important. 或 Turning in your assignments on time is important. P.S. 網路上有老師說，當動詞當句首，且只有一個字時，使用V-ing 會比較合適。例句：Finding a good house isn't easy. （找一棟好房子不容易。）[片語] turn in 繳交。[片語] on time 準時。