从下面所给的词组中，选择适当的词组填入下列各句中，每一词组最多只选一次。
be worried about turn up get stuck benefit from stand by according to
thanks to take up get across except for back out in search of be responsible for
86.The boys went _________________________ something to eat.
87.You must drive carefully , for you should _____________________________the passengers’ safety.
88.Don’t bother to look for my umbrella; it will _________________________somewhere.
89.George promised to contribute $200, but __________________of it when the time came.
90. ___________________ your practical advice, I passed the license test yesterday.
91.Harry ________________ the tale at the point where John had left off.
92.All the books in the library are placed on the shelves ____________????_______ the authors
93. I spoke very slowly, but my meaning still didn’t _______________.
94. ____________ one old lady, the bus was empty.
95.I will __________________ you whatever happens.