题目内容

Scientists have found no ________of life on Mars so far,though great efforts have made on the research.
A．symbolsB．signsC．marksD．signals
B
signs 迹象；symbols 象征；marks 标志；signals 信号。
练习册系列答案
相关题目
＿＿＿＿＿a wonderful sense of humour．
A．The English have B．The English has
C．English have D．English has
If the boss wants to fire me，he has to give me two months’ _________.
A．informationB．advice
C．messageD．notice
In the after-class activities，the students had plenty of_________and gained a lot of practical _________.
A．experience;experiences
B．practices;experience
C．practice;experience
D．exercise;knowledges
This is_________reading room.
A.teacher’s                                        B the teacher’s
C.teachers’                                        D.the teachers’
Don’t leave matches or cigarettes on the table within _______ of little children.?
A．handB．reach
C．spaceD．distance?
She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of ____ she may be in.
A．moodB．mindC．formD．thought
Keep quite. Don't make any ____.
A．soundB．noiseC．voiceD．cry
The top leaders of the two countries are holding talks in a friendly______
A．atmosphereB．stateC．situationD．phenomenon

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网