注意：此页面搜索的是所有试题
题目内容
（英语语法）
There are some police cars in front. What do you suppose （）?
选项
A:is the matter
B:is happened
C: is the wrong
D: the trouble is
选项
A:is the matter
B:is happened
C: is the wrong
D: the trouble is
参考答案
