二、单项填空（15分）
21. We have English lessons _______ Monday ______ Friday.
A. on, to B. at, on C. from, on D. from, to
22. I teach ______ English and he teaches ______ Japanese.
A. him, me B. his, my C. he, I D. himself, myself
23. My uncle can _______ Beijing next Sunday.
A. get B. arrive in C. arrive at D. gets to
