题目内容
?What should we do first if we want to develop our village?
?A lot of new roads ________, I think.
A. must build
B. have to build
C. must be built
D. have built
答案:C
练习册系列答案
相关题目
听短文,完成下面的表格(1-4小题回答不得超过3个单词)。 | ||||||||||
|