,
(
50
100
150
200
250
300
350
400
450
500
)
1
...
65
66
67
68
69
70
71
72
73
74
75
76
77
...
447
- .(3 )
-:
Present Simple, Present Continuous, Present Perfect
:
( ) ( )
1
, ,
: .
:
: .
- ()
1
...
65
66
67
68
69
70
71
72
73
74
75
76
77
...
447
