The children were warned of not being too ______ about things they were not supposed to know.

She used to________ a bus to school, but now she is used to________ to school.

We have been told that under no circumstance_____ the telephone in the office for personal affairs.

There aren’t_______ Halloween parties in China, but there are_______ in the USA.

I’m going to Hawaii with my aunt thismonth for my vacation.—_______