Millie often _______ a very special costume at theparty.

I wonder____you’ll water this kind of flower.— Every other day.[ ]

In English class, our teacher often creates an environment _____ we are given the opportunity to solve problems ourselves．

Under the environment of fierce competition, the only way John could imagine _____ pressure wasto work harder by making greater efforts.

.He made the choice to give all his money away, ______, he said, brought him happiness.