I DON’T KNOW HOW ……… THIS ELECTRONIC COMPUTER. A. IS USED TO B. IS...

2. - BAI ON KIEM TRA HOC KY 1 KHOI 10
BAI ON KIEM TRA HOC KY 1 KHOI 10
2. I don’t know how ……… this electronic computer. a. is used to b. is used for c. used to d. to use