— You may find the key to the maths problem on page 107. — Ah, it’s so simple. I wonder why I_________of that.
It is believed that life in the twenty-first century is much easier than ________ .
When _____ Chinese culture with other cultures, we often pay attention only to the differences without noticing the many similarities.
______ of the workers in the computer factory is about two thousand, and ______ of them are women workers.
______Browns usually go to ______ church every Sunday.
— I’m sorry I didn’t make it to your party last night.— ______, I know you’re busy these days.