I.单项选择（1×15）
1. I don’t think they had an exam in English yesterday,__________?
A. don’t I B. do I C. didn’t they D. did they
2.—They say that ______ Japanese language is especially difficult for ______ European.
A. the, an B. /, the C. the, a D. /, a
3. The earth is ___ than the moon.
A. as big as forty-nine B. as big as one-third
C. one-third time the size of D. forty-nine times bigger
