In our city, it is ______ in July, but it is even _______ in August.

.Without any doubt, depression________can create a variety of negative health effect.

Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China．

There were many apples ______ the tree. A monkey was picking them ______ it.

ompany wants to reduce prices to increase its market share, and this is _______ we differ from it.