Are you free tonight？
Sorry，but I'm not ．I've got so much homework to do （ ）
A．busyB．comfortable
C．available
﹣What did the manager ask you after the meeting？
She asked me__________．（ ）
A．what I do for the project last week
B．if can I finish the work on time
C．how did I deal with the problem
D．why I was late for the meeting
﹣China is over years old．It's one of _____countries in the world．
﹣Yes．It has much _____history than the USA．（ ）
A．old； longB．older；longer
C．older；the longestD．the oldest；longer
﹣Mom，I took my partner's math book home by mistake．What should I do？
﹣Well，you should call her_____ you can say sorry to her．（ ）
A．as ifB．so that
C．even thoughD．ever since
The 24th Winter Olympic Games _____Beijing and Zhangjiakou in 2022，from February 4th to 20th．（ ）
A．is going to holdB．hold
C．will be heldD．was held
﹣Over 100 countries and organizations _____warm support to the Belt and Road initiative（倡议） since 2013．
﹣Wonderful! Our circle of friends is growing bigger!（ ）
A．giveB．have givenC．gaveD．will give