53. Our music teacher often enjoyed _____ playing the violin in his spare time.
|
A．him by |
B．himself by |
C．him in |
D．himself with |
52. The struggle against sand storm will not end _____ victory unless we pay much attention to the balance of nature.
|
A．at |
B．in |
C．for |
D．With |
51. Don’t put your cell (手机) _____ the edge of the table, or it will fall off
|
A．at |
B．on |
C．to |
D．In |
50. The Englishman has a very good ear _____ music. You can ask him for some advice.
|
A．at |
B．of |
C．for |
D．In |
49. He goes _____ at 8 a.m. and comes _____ at 5 p.m. Today he is _____.
|
A．on duty; off duty; on night duty |
B．on his duty; off the duty; on night duty |
|
C．to duty; from duty; at night duty |
D．in duty; out duty; at night duty |
48. Some new changes happened _____ the school _____ my absence.
|
A．at; to |
B．in; for |
C．in; during |
D．at; on |
