Oh， dear! I can't find my key to the office．
Don't worry． I think you might ________ it in your car．（ ）
A．offerB．forgetC．borrowD．leave
Let's go climbing Langshan Mountain this Saturday ______the weather is fine．
Good idea!（ ）
A．thoughB．ifC．unless
Will Sam go to the cinema with us tonight？
I'm not sure．He_________not be free． （ ）
A．mayB．shouldC．can
________ different life is today!
Yeah． We are all living a happy and rich life now． （ ）
A．What aB．HowC．What
Which singer do you like， Zhang Liangying or Zhou Bichang？
______．I love their songs very much． （ ）
A．AllB．NeitherC．Both
The Wandering Earth，_______Chinese film， has become one of _____ most popular films this year． （ ）
A．a；不填B．a；theC．a；a