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
Nobody taught the old lady how to use Wechat. She learned it all by ____.( )
A.sheB.herC.herselfD.hers
Fishing is one of ____ activities among the middle﹣aged people.( )
A.popularB.more popular
C.most popularD.the most popular
I think tea will taste better ____ some milk in it.( )
A.forB.withC.fromD.at
We are proud of our country. The year 2019 is her ____ birthday.( )
A.seventyB.the seventy
C.the seventiethD.seventieth
____ Great Wall is one of the seven wonders around the world.( )
A.TheB.AC.AnD./