--- Hey, Mary, your backpack looks nice. When did you buy it. --- I ____ it for two weeks.
When first ____ to the market, the products enjoyed great success.
What surprised me was not what he said but _____ he said it.
It was raining heavily. Little Mary felt cold, so she stood ____ to her mother.
The problem he referred to _____ difficult, but is isn’t at all.
A good idea just _____ me. ----Let’s go swimming.