. To save class time, our teacher has ___ students do half of the exercises in class and complete the other half for our homework.
The people in the Kiss Nightclub were trying to escape from the fire but were ______ in smoke.
I still remember ______ to the Science Museum for the first time when I was young.
As a result of the fog haze weather, nowadays many people are longing to live ______ the air is fresher.
—I thought you ______ for vacation tomorrow. —I had planned to, but I have a very important meeting to attend tomorrow.
As President Xi Jinping put it in Moscow on Saturday, China’s development creates more ______ than threats.