Helen is 15 years old, and Joan is 15, too. So Helen is ____ Joan.
A. as big as B. as older as
C. as old as D. so old as
—What ____ news!
—Yes, all of the children were ____.
A. excited; exciting B. exciting; excited
C. excited; excited D. exciting; exciting
New York is one of ____ in the world.
A. the large cities B. the large city
C. the largest cities D. the largest city
Do you have difficulty ____ English?
A. to learn B. of learning C. learning D. learn
—I don't know much about computer.
—I don't know, ________. Let's go and ask for help.
A. also B. either
C. too D. as well
—What 's wrong with you? -- It’s
A. nothing serious B. serious nothing
C. serious something D. serious everything