Look at _______eraser on the desk.Whose is it?A.a B.an C.the
Lisa doesn’t know ______ she and her friends can do to help the little boy ______ parents have left their hometown for making money.
I could speak _____ German _____ French, so I had to talk with others in English.
—David has made great progress recently.—_____, and _____.
—What a grand monument(纪念碑) it is!—Yes, it was built in _____of those dead heroes.
—Do computers play ____ important part in our daily life?—Yes, and many people like playing ____ chess on computers.