If you can’t see the words written on the blackboard very well,maybe you need ___.A.examini...
If you can’t see the words written on the blackboard very well,maybe you need ___.A.examining B.to have you eyes examined
而the garden require ＿.的答案是watering.require 跟need 算一类词吧,用法一样.那第一题为啥不能选A?主动表被动.