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
Millie_________ missed the train this afternoon． It started to leave right after she got on it．（ ）
A．almostB．alreadyC．reallyD．seldom
Do you have this T﹣shirt in a small_______？
I'm afraid not． It only comes in medium．（ ）
A．sizeB．colourC．materialD．taste
Before you start reading， ask yourself_____ you are reading this book． Most people read for two main reasons， pleasure or knowledge．（ ）
A．whyB．whatC．whereD．when
We _____ to Yun Brocade Museum with the exchange students this coming summer holiday．
That's amazing!（ ）
A．wentB．goC．have goneD．will go
Mexican and Tex﹣Mex foods were popular in the USA， _______ now Chinese food has more fans．（ ）
A．becauseB．butC．soD．unless