I can’t connect my computer to the Intemet. There must be ______ wrong with it.

As we grow up, it always _______ that after we give something up, we gain something new in its place.

一Are you going to Guilin by plane?一It’s fast but expensive, so I’m not sure．I ________ take a train．

I forget to bring a pen. Would you lend me ?

Simon always shares the toys _______ his brother. [ ]