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Last year my English class was ____1___for me. First of all, it wasn’t easy for me to understand the teacher when she ___2___to the class. To begin with, she spoke too quickly, and I couldn’t ___3___every word. Later on, I realized it doesn’t matter if you don’t understand every word, ___4___ I was afraid to speak in class because I thought my classmates might laugh ___5__me. I couldn’t always make complete sentences, either. Then I started to ___6___ English-language TV. It helped a lot. I think that doing lots of listening practice is one of the secrets of ___7___a good language learner. Another thing that I found very difficult was English ___8___. So I decided to take lots of grammar notes in every class.

I found _____ very difficult to learn  maths  well.

A．what             B．it                C．that              D．this

I found _____ very difficult to learn  maths  well.

-- Did you read a book about customs last week?

-- Yes, I found ______ very useful to know the customs of foreign countries.

A. that             B. this             C. it’s            D. it

After visiting different countries, I found _______ very important to learn about table manners.

A. it                B. that            C. this              D. us