The situation is ________(hope) and they can hardiy get out alive.
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The scientists are working on the ________ (assume) that the rate of inflation will not increase next year.
Few people realize the ________(significant) of the issue that the environmental problems have sprung up all over the world.
The incident caused by misunderstanging has increased the ________(tense) between the two countries in the negotiation.
I was late in getting to the bus stop,but ________(fortunate) for me,the bus was late too.