1. (1) Mr. Smith did all he could ______ his family¡¯s living standard.
   (2) Mr. Wang made up his mind to devote all he could ____his oral English before going abroad.
   (3) He couldn¡¯t believe that such a little boy could _____ his English with so little time.
  A. improve    B. to improve    C. improving         D. to improving
2. (1) He was very careless, so I am afraid he _____ your umbrella by mistake yesterday.
   (2) Everything he ______ away from him before he returned to his hometown.
   (3) Everything ______ away from him before he returned to his hometown.
  A. took      B. had been taken   C. had had been taken  D. had taken
3. (1) Before he went abroad, he looked forward ______ English as much as possible.
   (2) Before he went abroad, he spent as much time as he ______ English.
   (3) As their English teacher had gone back America, so as a result, they stayed only ___ French.
   A. could learning   B. to learn      C. to learning    D. could learn