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【单选题】
How stupid I have been! Why _______ I do that before?

don’t
didn’t
not
【单选题】
_______ I enjoy most is _______ I can come and listen to the concert.

That,that
What,that
What,what
【单选题】
If I can get a pay raise, I _______ buy a house.

/
will
would
【判断题】
A: I have lunch in the restaurant. B: So have I

正确
错误
【单选题】
I sprained my ankle when I _______ running in the street.

is
was
/
【单选题】
I often feel lonely when I engage in my online learning. ________?— I join the online course community.

How do you solve this problem
How do you think about it
How often do you engage in online learning
When do you engage in online learning
【单选题】
25. I can’t go—for one thing, I have no money, and ___, I have too much work.

what’s more 
as well 
for another 
in addition
【判断题】
已知byte i = (byte)127; i = i +1;这两个语句能被成功编译。

正确
错误
【单选题】
在下面的do循环语句中,其循环体被执行的次数为( )。 int i=0;do i++;while(i*i

4
3
5
2
【单选题】
下面程序段的运行结果是()。intm[]={5,8,7,6,9,2},i=1;do{m[i]+=2;}while(m[++i]for(i=0;ii++)printf("%d",m[i]);

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