I know that boy has the ability ________ the differences between the two pictures in a short time.
A. finds out B. found out C. finding out D. to find out
My mother prefers to take a bus to her office ________ she has a car of her own.
A. although B. if C. because D. until
Her songs ________ sweet and many of us like listening to them.
A. sound B. feel C. taste D. look
—I wonder how you have improved your spoken English so fast, Li Lei.
—________chatting with my foreign friend，Mike.He's been here for some time, you know.
A. By B. With C. On D. At
Ⅳ.根据汉语意思完成句子，每空一词。
1.我很高兴得知他们成功地提前完成了项目。
I'm glad to hear that they've succeeded in completing their project_____ ________time.
2.这些旅行者休息三天后又上路了。
After a three-day rest，the travelers_____ ______ again.
3.首先，你必须完成你的家庭作业。
_____ ______ _____, you must finish your homework.
4.绝不能强行使任何一个孩子与其母亲分开。
No child should ever be______ ________ his mother by force.
5.作为父母，我们必须对你的决定负责。
As parents，we must_____ __________ _______ your decisions.
—Don't be angry with your kid when he makes a mistake again，will you?
—No，I won't. I know that ________ of us is perfect after all.
A. none B. neither C. all
