UC知道英语问题，敬请高手指教。。谢谢~
来源：百度知道 编辑：UC知道 时间：2024/05/23 18:43:58
41.our classroom must be made_____all the time.
A.clean B.to clean C.cleaning D.cleans
42.his____son is very intelligent.
A.six-years-old B.six-year-old C.six years old D.six year old
43.may I speak to maria?_____________.she’s in hr room.
A.speaking B.who are you C.hold on a moment D.i’m her father
44.the students_________an english class at 10:00 yesterday morning.
A.having B.were having C.had had D.had
45.when I got to the office, the meeting_________for twenty minutes.
A.had begun B.had been on C.has been on D.has begun
46.what’s the boy doing? He’s so quiet today.___________
A.i think he is singing. B.maybe he is playing football.
C.sorry, I have no idea D.how can I know that.
请告知解题原因。。谢谢~
A.clean B.to clean C.cleaning D.cleans
42.his____son is very intelligent.
A.six-years-old B.six-year-old C.six years old D.six year old
43.may I speak to maria?_____________.she’s in hr room.
A.speaking B.who are you C.hold on a moment D.i’m her father
44.the students_________an english class at 10:00 yesterday morning.
A.having B.were having C.had had D.had
45.when I got to the office, the meeting_________for twenty minutes.
A.had begun B.had been on C.has been on D.has begun
46.what’s the boy doing? He’s so quiet today.___________
A.i think he is singing. B.maybe he is playing football.
C.sorry, I have no idea D.how can I know that.
请告知解题原因。。谢谢~
41.A clean是宾语补助语，all the time说明需要一个表示状态的词。
42.B 有连接符号时，名词前的修饰短语中名词用单数。
43.C 因为Maria不在，所以接电话的人要去叫她，因此需要对方等一等。
44.D 因为有具体的发生的过去时间点，只能用过去式。
45.B 已经开始了要用过去完成时态，后面有一段时间做状语，因此需要延续性动词，所以是had been on。
46.C 从选项入手，因为he很安静，排除A B选项，D不符合说话的习惯，所以选C。
晕，，
作业题啊，，，