câu 15. if you want a particular book, the person to see is the libraian she is wearing glasses. Tại sao lại sai ở she is wearing glasses.
Câu 54: I called my cousin, ________ í a mechanic, to fix my car,_____was broken. Đ/Án Who/ all of which tại sao là all of which
Câu 4: I liked the friends ............... I went on holiday
Tại sao là with whom hả cô
Câu sửa lỗi sai:
4. Our polluted environment Which is the result of the overusing of.......... tại sao sai ở Which
5. Energy being the power from sources such as electricityand coal......... sao lại sai ở "being"
7. nuclear power stationsare costly which to build but they efficiently produce........... sai ở Which to build sao hả cô