________ we know, the moon goes around the sun.
.Anyone in the company should be aware ______ his duty and try his best to make contributions.
.It was only when I reread his poems recently _______ I began to appreciate their beauty.
.Too much drinking and smoking ________ his early death. Which of the following keys is wrong?
.The refugees(难民) ran in all directions to avoid _______.
.______ we’ll go camping tomorrow depends on the weather.