In salad bars the waiter does not bring you salad.You have to ________ yourself, usually to as much as you want.
That dog ought to be destroyed ______ it attacks any more children.
The library needs __________, but it’ll have to wait until Sunday.
The 1930s __________ the suffering of the Chinese from war.
— Could you help me with my English?— _____________.
to take my English textbook, I had to borrow one from a schoolmate.