The customer left the waiter a ________ tip because he had been especially friendly and helpful.

Food supplies in the flood-stricken area______. We must act immediately before there’s nothing left.

It was at ten o’clock _____he came back. [ ]

Little _______ about Xinjiang Qiegao before the Qiegao Event happened in Hunan Province.

There are plenty of jobs ___ in the western part of the country.