【2015·浙江】If you swim in a river or lake, be sure to investigate ____ is below the water surface.Often there are rocks or branched hidden in the water.
Last night our national football team was defeated by 0:5, which _______ us very much .
I hate all this travel; I want to get married and _________.
The teacher told me that the light ______ faster than sound.
_____improve her English, Jenny bought a lot of tapes for herself.
— Look! Black clouds are gathering.— Yes. A heavy rain is ______ to come.