石油化工设备上常用的耐热钢，按耐热要求的不同，可分为（）和（）。

小题1:What strange _______________(suggest) you have offered!

小题2: Five         (nine) of the people at the conference come from European countries.

小题3: The house ____________ (it) is not to my mind, but I like its environment.

小题4:My head teacher does everything_______ (patient) while she is in a good mood.

小题5:There are some things that you can’t change, like your       (身高).

小题6:The seats have no back ___________ (紧靠着)which to lean.

小题7:A space sleeping bag is used to be fixed to the walls to prevent_________________(漂浮).

小题8:We must do something to deal with the ____________ (污染) water, otherwise, the fish will die.