--Is this_____English car? --No,it's____Chinese car? A.an an B.an a C.a an
Although they feel tired,__________they still go on working.
When I spoke English,people there always laughed _________me.
—Why did you quarrel with your mum? —She was always _________ a little guy.
Why don’t you _________your teacher for help?
I know Lillian Li enjoys_________out with English-speaking friends.