Usually we use X as the symbol____an unknown word or a wrong

we use "X" as the ---for an unknown quantity. 定语从句as we use the word中,as是the word的同位语是什么意思? Is a correct word right or wrong? he found the word _____in a wrong way as soon as he saw the 几道英语问题求解Church as we use the word refers to all religious in Then use the word as often as you can _____you learn it.A.th If we don't know the meanming of a new word,we can use a ( ) Then use the new word as ofen as you use the word as often as you can的意思 We usually use the mouse __ the computer A.controlling B.con 怎么回答ls a correct word right or wrong we use a or an before nouns when we mention them for the fir