lxylcy
幼苗
共回答了17个问题采纳率:88.2% 举报
1.D
解析:情态动词的推测性用法:must只用于肯定句;can常用于否定句和疑问句.
2.A
解析:by 和表示交通或通讯方式的名词连用时,不用冠词.如:by train/bus/plane; by radio/telegram;by air/water/sea/land etc.如选B on ,应该说:on a train.
3.A,C 都正确.
解析:in school 用于美国;at school 用于英国.
请看牛津高阶词典的解释:at / in school
In BrE someone who is attending school is at school:I was at school with her sister.In AmE in school is used:I have a ten-year-old in school.In school in AmE can also mean 'attending a university'.
4.must have finished
解析:既然在玩,肯定是做完作业了比较合理.在玩之前就做好了,用must have done表示对过去已经发生了的事情所做的肯定推测.不过本人觉得此题如此设置更好:The children are playing in the garden.They__(must,finish)their homework.
5.to go
解析:考查句型:want sb.to do sth.de 用法.
6.must be ;bought
解析:must be 表推测(对现在的推测如:第一题);yesterday 提示定语从句时态应用一般过去时,所以填bought.
7.to go
解析:考查句型:make up one's mind to do sth.
8.They must have been working for a long time.
9.That is why he was absent from school.
10.Who is going to look after our birds when we are out?
1年前
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