事情是这样的，本来房子的买卖合同汇中很多条款是固定格式的，可卖家坚持将固定格式里的“6.0 Vendor's warranties and undertakings"这一项下的所有条款划掉，
6.1 The vendor warrants and undertakes that at the date of this agreement the vendor has not:
6.2 The vendor warrants and undertakes that at the giving and taking of possession:
6.3 The vendor warrants and undertakes that at settlement:
6.4 The vendor warrants nd undertakes that on or immediately after possession:
6.5 If the purchaser has not validfy cancelled the agreement,the breach of.........