91. ______ finding solutions, it is unthinkable to solve all the problems the same way throughout the country.
Never before seen anybody who can play tennis as well as Robert.
You can borrow my car ___ you promise not too fast.
You'd better write down the phone number of the restaurant for future ____.
By 16:30, was almost closing time, nearly all the paintings had been sold.
――Look! Somebody ____the sofa.. ――Well, it wasn’t me. I didn’t do it.