下列离子所用检验试剂和滴加顺序正确的是
A． ：先加BaCl2溶液，再加稀硝酸，有沉淀生成 |
| B．Cl-：先加稀盐酸酸化，再加AgNO3有白色沉淀生成 |
C． ：加浓NaOH溶液共热，有能使湿润的红色石蕊试纸变蓝的刺激性气味气体生成 |
| D．Fe2+:加氯水，再加KSCN溶液显血红色 |
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
It is often ______ that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
| A．果脯（fǔ）倾轧（yà）供不应求（gōng） |
| B．模型（mó）殷实（yīn）寡廉鲜耻（xiǎn） |
| C．宝藏（zàng）间断（jiàn） 浑身解数（jiě） |
| D．澄清（chéng）包扎（zā）相形见绌（chù） |