We used to buy things in the ____________ but now we usually do it online.（ ）
A．shopB．museumC．bankD．library
The 19th National Congress of the CPC（中共十九大）_____in Beijing last year．
Our country has been into a new era（时代） since then．（ ）
A．heldB．was heldC．has heldD．had held
Mary， how can I get to Xianning from Wuhan next week？
You'd better take a train．_____the suitable trains in the timetable．（ ）
A．Set upB．Look upC．Take upD．Put up
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