Look, dark clouds are gathering It is ______ to rain soon

Neither of them thought______ of him and they both tried to _____ him in his work.

oks as if it’s going to rain, but I’m not surewhether the windows are shut in my apartment—You aswell go back to have a look

13 ___ had they reached the 30th floor ____ they realized that they had forgotten to take the key

________different kinds of pianos, the factory is sure they can satisfy people’s needs. [ ]