Fill in the blank in each of the following sentences with a suitable preposition or adverb. (1*10=10 points)1.During the voyage we relied ______ the radio for news of the outside world.2.So, do you want to take a leap ______ faith, or become an old man, filled with regret , waiting to die alone?3.I am extremely grateful ______ all the teachers for their help.4.It would indeed be surprising if none of them made loss ______these circumstances.5.I have ______mind some doubts which really puzzle me.6.How much is the red dress you have ______display in the shop window?7.Other than the bad English, the ideas convey in these so-called mottoes run contrary ______the Harvard spirit.8.The trees gave them some shelter ______the wind.9.I’m in a rather tricky position; can you help me ______?10.People of all ages are affected, but some groups are more ______ risk.