Question

Old Henry ­­­­­­_________ take his dog for a walk after supper. But these days he is too weak to do that.

1. A.
   has to
2. B.
   is able to
3. C.
   used to
4. D.
   got used to

Answer 1

C
試題分析：have to 不得不  be able to能夠做某事 get used to sth習慣于某事 ，句意：亨利老人過去常常晚飯后去遛狗。但現(xiàn)在他太虛弱了而不能這么做了。故選C.
考點：used to do 句型用法
點評：be used to do sth被用來做某事；be used to doing sth習慣于做某事及used to do sth過去常常做某事，是中考必須掌握的基本語言點。其中，used to do sth表示過去常常做某事而現(xiàn)在已經(jīng)不這樣了。