____ are you staying in Shanghai— For about half a month.

You can’t see well through a telescope unless correctly to your sight. [ ]

Some people argue that using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.

Our class is going to take a _________trip to Suzhou and we excited about it.

One of our rules is that every student wearthe school uniform while at school.