Having walked in the desert for several days, we felt exhausted, but we had to find a pool before water in the bottle ____.

（湖南省怀化市2014年高三第二次模拟考试）28. Word came, as expected, ______ college entrance English exam will be reformed soon.

I cannot hear the professor clearly as there is too much noise _____ I am sitting.

Shall we go to the art exhibition rightaway— _____

I feel tired and sleepy．–Why not stop _______