If you don't know what this means,________ the dictionary.
If you don't know the word,you can______a dictionary
If you don't know the words,you can _____in a dictionary.
i bet you don't know what it means
1.I don't know if ________ this afternoon.
If you don't know the word,you may look it ________ in the d
"If you don't know the word,you may look it ________ in the
i don't know what the word means?
If you don't know the new words,please _______ ________ ____
i don't know what this is.do you know who the girl standing
if you know what the trouble is,why don't you help them to _
You _____(not know ) what the pear tastes like if you don't
If you don't know what you want是什么句型?