皮皮学，免费搜题
登录
搜题
【单选题】
Professor Smith will come here to give a speech. All the preparations must be _____ before 5 o’clock.A.
in time
B.
in sight
C.
in place
D.
in control
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】 It was ordered ________ put in order.
A.
the classroom to be
B.
that the classroom be
C.
the classroom to
D.
that the classroom was
【简答题】C4ISR系统是指:____,____,____,____,_____及____与____
【单选题】 It was __________ I realized how important it was to be careful while working.
A.
then when
B.
then that
C.
now when
D.
then
参考解析：
知识点：
题目纠错 0
发布
