_____ unemployment and crime are high, it can be assumed that the latter is due to the former.
---- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.---- Oh, dear! She _______ a lot of difficulties!
In our childhood, we were often _______ by Grandma to pay attention to our table manners.
They _______ on the program for almost one week before I joined them, and now we ________ it as no good results have come out so far.
David has won the first prize in singing; he is still very excited now and feels________ desire to go to bed.
________ in the mountains for a week, the two students were finally saved by the local police