急 求解英语单选46.We'd better have the bicycle ____ immediately so Sam can use it for the spring outing.[A] repair [B] to be repairing [C] repaired [D] been repaired47.Excuse me,but it is time to have your temperature ____.[A] taking [B] to take [C] take [D] taken 48.It was in 1861 ____ the American Civil War broke out.[A] that [B] while [C] during which [D] in which49.There is little doubt ____ you'll be able to judge truth and error if you have confidence

46. We'd better have the bicycle ____ immediately so Sam can use it for the spring outing.
[A] repair
[B] to be repairing
[C] repaired
[D] been repaired
选项是C
47. Excuse me, but it is time to have your temperature ____.
[A] taking
[B] to take
[C] take
[D] taken
选项是D
48. It was in 1861 ____ the American Civil War broke out.
[A] that
[B] while
[C] during which
[D] in which
选项是A
49. There is little doubt ____ you'll be able to judge truth and error if you have confidence in yourself.
[A] that
[B] whether
[C] as
[D] as to
选项是A
50. It is a great surprise to me ____ Father changed his mind so soon.
[A] why
[B] that
[C] how
[D] because
选项是B

C have sth. done, 固定句型
D 量体温
A 强调句型
A doubt doubt如果是名词引导同位语从句时，如果主句是否定句/疑问句，则同位语从句的引导词只能用that
B it是形式主语，it is .. that... 句型
有问题请追加~

CDABB

CDDBB其实你可以再等等别人的答案。。。一般都是对一下几个人的比较安全。。。

46.We’d better have the bicycle ____ immediately so Sam can use it for the spring outing.[A] repair [B] to be repairing [C] repaired [D] been repaired46.C 正确.have sth.done “叫别人把某事做好”,固定...

46. C 【have sth done 】
47.D 同上
48. A 【强调句，本句强调时间】
49. B 【宾语从句，省略about ，doubt所以用whether引导宾从】
50. B

C D A A B