American English is more or less different____British English______pronunciation and spelling.
I thought he would offer to pick me up. _______, he even refused me when I asked him to do so.
Li Ming is a student who is easy _____ though he has some trouble _____ his lessons.
It is surprising that such a young boy can swim ______ the river ______ 100 meters wide.
His English is improving _______, which makes both his parents and his teacher happy.
As he works in a remote area, he visits his parents only _______ .