If / he / want / get / good grades / he / must / study / hard /. A. If he wants to get good grades he must studys hard10/34If / he / want / get / good grades / he / must / study / hard /. If he wants to get good grades he must studys hard If he want get good grades he must study hard If he wants to get good grades he must study hardIf he wants to get good grades he must to study hardGiải thíchĐáp án đúng là C