Which of the following sentences is grammatically correct?
a. only bill wanted to go to the lake. [intended meaning: bill wanted to go to the lake, but no one else did.]
b. bill only hinted that he would us move. [intended meaning: bill hinted but did not, for example, promise that he would us move.]
c. bill wanted only mary to win. [intended meaning; bill wanted mary to win, but did not want anyone else to win.
d. all of these

D. All of these.

Explanation:  When using the word "only" in a sentence, we need to place it next to the word (noun or verb) or phrase that we are trying to modify.  When the word "only" is placed incorrectly in a sentence, it becomes a misplaced modifier. In all the given sentences, the word "only" is placed correctly. In the first one, it is modifying the noun "Bill," in the second one it is modifying the verb "hinted" and in the third one it is modifying the noun "Mary."

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.