--What’s that on_____ desk?--It’s__________ alarm clock.A,the;a B.the;an C.a;an D.a;a
That’s an important event________American history.
She________TV at home when it began to rain.
—What is she doing over there? —She is waiting for her kid________home for dinner.
I________,but I didn’t________anything.
I don’t remember________the book yesterday.