英语语法This is the microscope ______ which we have had so much

24.This is the microscope ______ which we have had so much t this is the machine ()we have had so much trouble 18.this Is therefrigerator ______ we have had so much troubl this is the question ______ that we've had so much discussio this is the washing machine / we have had so much trouble.a TESTNINE 18.this is the refrigerator we have had so much tro This is the question we have had so much discussion about .这 this is the refrigerator _we have had so nuch trouble (1/2)英语语法问题:this is the place which( where ) I have ever vis This is the scientist ______ we have learn a lot. this is the restaurant（）we had dinner last night which和at wh this is not the first time we have had to navigate what we h