初中英语问题14
1,thereareabouttwo____workersinthefactory
A,thousandB,thousandofC,thousandsofD,thousands
2,many_______treesshouldbeplantedonthemountains
A,thousandB,thousandofC,thousandsD,thousandsof
3,wehaveplanted_______treesinsanbei.it's"greatgreenwall"oftrees
A,millionB,millionsC,millionsofD,millionof
4,______peoplewerehurtinthetrainaccident.sowemustbemorecareful
A,hundredB,hundredofC,hundredsD,hundredsof
最好解析一下