成人高考考试

【单选题】Mother insisted that ______
A、they are to be back before nine in the evening
B、they ought to be back before nine in the evening
C、they be back before nine in the evening
D、they had to be back before nine in the evening

网考网参考答案：C
网考网解析：
insist表示“坚决要求”。其后的宾语从句中要用虚拟语气，其构成是should do，should可以省略。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>