一道英文问题Great use must be made of English to help communicate

Time must be made use __ English.A.of to learn B.of learning computers must be of great use to doing scientific research 英语翻译Efforts must be made to use in the tests the kind of lan every minute must be made full use of __spoken Ehglish A to Computer must be of great use to ____do the scientific resea The money collected should be made good use of to help the p 英语翻译better use should be made of a way to learn English well be of great help to用法 be of great help to造句 This book will be of great use to you. Through English we will be able to communicate _____ part of Every minute must be made good use of ______ your lessons.