根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
In order to help children learn to use an English dictionary, you’ll obviously need to have one on hand for them to view.
____ It is used to give the meaning and the usage of any given word in English.
___ If it has not yet been introduced to the children, they need to learn it so that they can use the English dictionary effectively (高效地). ____ Ask the children to choose a word, and then show them how you search for the word by alphabetical order.
Show the children how to learn a new word with an English dictionary. ____ You will also need to point out how some words can be used as nouns and verbs, etc.
____ To make sure that the children understand how to look up a word in the dictionary, ask them to choose a few more words, and guide them as they look each one up themselves.

A．Check if the children are familiar with the alphabet (字母表).

B．Begin with explaining what an English dictionary is used for.

C．The children will find a plain dictionary boring and uninteresting.

D．Finally, help the children to practice how to use the dictionary themselves.

E.     Finally, make sure the children have learned some new words with the dictionary.
F.     You need to show them how the dictionary explains the meaning of the word.
G.    When the children have well mastered the alphabet, simply show them how an English dictionary is used.