苯与乙炔相比较，下列叙述不正确的是（ ）
A 都能燃烧，生成二氧化碳和水
B 乙炔易发生加成反应，苯只能在特殊条件下才能发生加成反应
C 都能被高锰酸钾氧化，使酸性高锰酸钾溶液退色
D 相同质量的苯和乙炔，完全燃烧时耗氧量相同
I’m sure that your letter will get______ attention. They know you’re waiting for the reply. 
| A．continued | B．immediate | C．careful | D．general |
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |
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 |