02:39
معايير دركر
1421 Views
02:58
مقياس الربحية
1209 Views
01:15
مقياس القيمة المضافة
1314 Views
03:45
شركة ستيرن
1034 Views
02:50
عناصر الاداء
1471 Views
04:11
Can as a Modal of Permission and Request
1497 Views
06:30
May as a Modal of Permission and Request
1718 Views
03:27
Polite Requests
1627 Views
04:35
Prepositions of Instruments and Means
1547 Views
09:35
Parallel Structure
1730 Views
03:10
Language Use
2155 Views
02:40
Writing Formal Letters
1589 Views
03:08
Meaning and Form
1611 Views
09:03
The Use of the Present Perfect
1551 Views
00:49
Key Words: Present Perfect
3460 Views
04:50
Have or Has
1528 Views
03:20
Since vs For
1698 Views
05:33
THE PRESENT PERFECT & THE SIMPLE PAST
2120 Views
03:45
The Form of the Active Voice
1580 Views
03:29
What is the Passive Voice?
1626 Views
07:20
The Form of the Passive Voice
1594 Views
09:31
Changing from Active into Passive
1368 Views
01:59
The Tense of the Passive Voice
1637 Views
01:52
The Form of Irregular Verbs
1511 Views
01:56
READING COMPREHENSION &VOCABULARY
1507 Views
30:17
STRUCTURE
2596 Views
13:16
REWRITE SENTENCES
1314 Views
03:40
LANGUAGE USE & WRITING
2209 Views
02:36
تقييم الادارة العليا
2367 Views
04:00
مجالات الاداء
1980 Views