How did you put together the model plane so perfectly？
It's easy．I just followed the ______．（ ）
A．instructionsB．instruments
C．interviewsD．inventions
Mom，_____I play computer games this evening？
Sure， but you_____finish your homework first．（ ）
A．can； mustB．can； mustn't
C．may； couldD．may； can't
Could you give me a few ______ on how to spend the coming summer holiday？
OK．Let me see．（ ）
A．hobbiesB．knowledge
C．suggestionsD．information
Nowadays China has about 25，000 kilometers of high﹣speed railways．
That's ______of the world's total．（ ）
A．two thirdB．two﹣thirdC．two thirdsD．two three
President Xi Jinping paid______important visit to the US in 2017．
And he was warmly welcomed by Donald Trump，_____45th American president．（ ）
A．a； theB．an； theC．the； aD．an； a
I wonder______．
I' m not sure yet．（ ）
A．which is hersB．which hers is
C．Whether is it hersD．whether hers it is