We _____ to Yun Brocade Museum with the exchange students this coming summer holiday．
That's amazing!（ ）
A．wentB．goC．have goneD．will go
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
Do you know where the last two pictures went？
A millionaire bought _____of them． He thought they were worth．（ ）
A．eitherB．eachC．noneD．both
I took the subway and_____at the downtown station．（ ）
A．got throughB．got over
C．got onD．got off