某工程项目材料供应合同中约定，供货方支付订购的材料后，采购方再行支付货款，合同履行过程中，由供货方交付的材料质量不符合约定标准，采购方拒付货款，采购方行使的是（　　）。

A．同时履行抗辩权

B．后履行抗辩权

C．先诉抗辩权

D．不安抗辩权

用正确的表达完成句子。

1. She said they would have a _________ (惊喜聚会) for Linda's birthday.

2. I was _________ (对……生气) Tim because he was rude to me.

3. I won't be the place _________ (再也不).

4. I was _________ (对……感到惊讶) his amazing performance.

5. What you did will start a _________ (坏习惯).

6. The terrible scene made him _________ (感到难受).