A. ham B. world C. let's D. from time to time A. activity B. action C. way D. standard A. shop B. prevent from C. caring D. apparatus A. fall in love B. to C. tropical D. rid A. tomato B. That's OK C. slow down D. habit A. run down the stairs B. a little bit C. go shopping D. enrich A. video B. buy C. all alone D. Vietnam A. chemist B. persuade C. bag D. Sweet tooth A. generally B. currency C. overtake D. supermarket A. blow up B. once again C. want D. footballer