—You don’t seem to be quite yourself today. What’s wrong? —Oh, I’m suffering from a cold. Nothing serious, _____. 

—How do you find this new movie?—It's ________ interesting than expected.

—Thank god, you finally returned home ________. —You can never imagine how I worried about you when I was told about the terrible accident. 

Parents complain that _____ shown on TV will have bad influence on high  school students’ moral _____.

As is known to all language learners, the newly learnt words will soon be forgotten unless they are _______ used in everyday communication.