You have to keep alert when you are in the supermarket; otherwise, you might _____ what you actually don’t need at all.
The buildings of this style can be seen _________.
30 % of the young trees, attacked by diseases, ________pine trees.
Tomato, which used to be called “love-apple”, is not ____but ______.
- _______ do you have in this season? --- You can have anything you want.
The letter _____London, May 24th, 1898 .