选择题 ( )1. He is always tolerant ______ different opinions. A. to B. of C. from D. at ( )2. I have some trouble _______the silk dress. A. washing B.wash C. to wash D. washed ( )3. They creat problems _______ misunderstanding what is said. A. for B. because of C. since D. because ( )4. The correct response to a sneeze is “______”. A. God bless you B. Good luck C. You are ill D. Take care ( )5. The little boy pretended _______what the teacher said. A. understand B. to understand C. understanding D. understood ( )6. They were talking excitedly, leaving me ______ there. A. stand B. to stand C. standing D. stood ( )7. If you must ______ your native language to explain something to a non-English speaker, you ’d better tell your American friend. A. switch B. switch on C. switch to D. switch off ( )8. You will be ready ______ face the world of Americans ______ confidence. A. to, with B. with , to C. to , to D. with, with ( )9. If you don ’t understand, just ______ it and politely ask him or her to repeat. A. accept B. receive C. agree D. admit ( )10. ______ you've studied this quick overview of manners in the US, you're ready to be polite in English. A. So B. Now that C. That D. But