we have been in grade nine_about four months.

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/08 15:34:27
wehavebeeningradenine_aboutfourmonths.wehavebeeningradenine_aboutfourmonths.wehavebeeningradenine_ab

we have been in grade nine_about four months.
we have been in grade nine_about four months.

we have been in grade nine_about four months.
for,表示状况持续了多长时间.