The world's population will still ________ un...

The world's population will still ________ unless we do something to control it.

A. finish　　 B. agree　　 C. increase　　 D. expect

九年级英语单选题中等难度题查看答案及解析

The population of the world ____ still ____ now.

A．has; grown        B．is; growing         C．will; grow          D．is; grown

九年级英语单项填空简单题查看答案及解析

—The population of the world ____ still ____ now.

—So it is.

A. are; growing       B. will; grow        C. is; growing

九年级英语单项填空中等难度题查看答案及解析

We still gave the boy another chance ______he made some mistakes.

A. though　　　　 B. when　　　　　　 C. unless　　　　 D. because

九年级英语单项填空中等难度题查看答案及解析

一Do you think the weather will be all right for a weekend outing?

一No, unless we're 　　　 . The newspaper says it'll be very hot anyway.

A. lucky　　 B. confident　　 C. wrong　　 D. crazy

九年级英语单选题中等难度题查看答案及解析

What will the car be like in the future? Do we still have to learn to drive cars ourselves in the future? The answer is No.1..

About 40 years ago, scientists from the United States started to develop self-driving cars.2.. The most famous recent one was made by Google in 2009. There are cameras and radars on the top of the car. They allow the computer in the car to draw a 3D map of the environment.3.. The car made a trip from Changsha to Wuhan.

Is a self-driving car safe? 4.. If only 10% of the cars on the street are self-driving, they will save 1,000 lives every year. If 90% percent of vehicles are self-driving, 21,700 lives will be saved a year. 5..  So it is impossible to be very popular in the near future.

A. Chinese scientists have also successfully developed a self-driving car.

B. A recent study shows that robots make safer drivers than humans.

C. However, a self-driving car is expensive and each costs about $ 100, 000.

D. They have made great progress these years.

E. Maybe we can sit in a car that can drive itself.

九年级英语补全短文5选5中等难度题查看答案及解析

—All the oil in the world will ______ some day.

—Yeah. What shall we use at that time?

A. give away    B. put away

C. run out    　　 D. pick out

九年级英语单项填空简单题查看答案及解析

—All the oil in the world will have __________ some day.

—Yeah. What shall we use for power at that time?

A.given away B.put away C.run out D.set out

九年级英语单选题中等难度题查看答案及解析

Iceland will completely disappear in the world if we ________ nothing to the environment.

A.do B.did C.have done D.will do

九年级英语单选题中等难度题查看答案及解析

—Perhaps we will live on Mars some day.

—Then we can do anything　　 can be done on the earth.

A. that　　 B. which　 C. who

九年级英语单项填空中等难度题查看答案及解析