I'm sure that reading is a good way of ____ our Ebglish words.(enlarge)用所给动词的适当形式填空.

I'm sure that reading is a good way of ____ our Ebglish words.(enlarge)用所给动词的适当形式填空.
I'm sure that reading is a good way of ____ our Ebglish words.(enlarge)
用所给动词的适当形式填空.

I'm sure that reading is a good way of ____ our Ebglish words.(enlarge)用所给动词的适当形式填空.
enlarging