给笔友的信(A Lttr to His Pn Frind)ystrday li nan hard from his pn frind, mik. h is a canadian and h is as old as li nan. mik is intrstd in china and things rlatd to china. so h is larning chins. h will visit china soon.from his lttr li nan knw that h had som troubl in th grammar. it is difficult for a forignr to larn chins as it is difficult for chins studnts to study nglish wll. h nds li nan's hlp.li nan hops h can com to china soon. thn h can hlp mik larn chins and mik can hlp him with his nglish.