03:34
مشكلات قياس الاداء
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05:30
مقاييس الاداء
1289 Views
04:00
مجالات الاداء
1677 Views
02:36
تقييم الادارة العليا
1952 Views
03:40
LANGUAGE USE & WRITING
1733 Views
13:16
REWRITE SENTENCES
1056 Views
30:17
STRUCTURE
2294 Views
01:56
READING COMPREHENSION &VOCABULARY
1235 Views
01:52
The Form of Irregular Verbs
1245 Views
01:59
The Tense of the Passive Voice
1323 Views
09:31
Changing from Active into Passive
1102 Views
07:20
The Form of the Passive Voice
1315 Views
03:29
What is the Passive Voice?
1349 Views
03:45
The Form of the Active Voice
1311 Views
05:33
THE PRESENT PERFECT & THE SIMPLE PAST
1639 Views
03:20
Since vs For
1458 Views
04:50
Have or Has
1271 Views
00:49
Key Words: Present Perfect
2904 Views
09:03
The Use of the Present Perfect
1255 Views
03:08
Meaning and Form
1299 Views
02:40
Writing Formal Letters
1287 Views
03:10
Language Use
1887 Views
09:35
Parallel Structure
1442 Views
04:35
Prepositions of Instruments and Means
1273 Views
03:27
Polite Requests
1347 Views
06:30
May as a Modal of Permission and Request
1326 Views
04:11
Can as a Modal of Permission and Request
1078 Views
02:50
عناصر الاداء
1279 Views
03:45
شركة ستيرن
864 Views
01:15
مقياس القيمة المضافة
1088 Views