问题
选择题
During the seven-day May Day holiday, _____ families went sightseeing. [ ]
A. thousand
B. thousands
C. thousands and thousands
D. thousands of
答案
答案:D
During the seven-day May Day holiday, _____ families went sightseeing. [ ]
A. thousand
B. thousands
C. thousands and thousands
D. thousands of
答案:D