1. How many times a week do Helen's parents go to work? a) They go to work on Saturday and Sunday. b) They go to work 5 times a week. c) They go to work 4 times a week.

1. How many times a week do Helen's parents go to work?

Обоснование: В тексте сказано: "My parents go to work five times a week.". Это соответствует варианту b).

Ответ: b) They go to work 5 times a week.