Dr. Zhong Nanshan is a pioneer has made a lot of contributions (贡献) in the field of medical science.( )
A.whichB.whoC.whoseD.what
I ordered a hamburger and salad.________ hamburger was nice but the salad was not delicious.( )
A.AnB.TheC.A
Be quiet! A bird ________ something on the window.( )
A.AreB.eatsC.is eating
Xiao Fang introduced herself to the new students in English in_________ lesson.( )
A.the firstB.atC.one
He knew his subject________ A to Z.( )
A.fromB.atC.on
You can keep one of the old photos.________ of them.( )
A.NeitherB.BothC.Either