02:39
معايير دركر
1304 Views
02:58
مقياس الربحية
1145 Views
01:15
مقياس القيمة المضافة
1230 Views
03:45
شركة ستيرن
943 Views
02:50
عناصر الاداء
1378 Views
04:11
Can as a Modal of Permission and Request
1269 Views
06:30
May as a Modal of Permission and Request
1458 Views
03:27
Polite Requests
1473 Views
04:35
Prepositions of Instruments and Means
1379 Views
09:35
Parallel Structure
1568 Views
03:10
Language Use
1996 Views
02:40
Writing Formal Letters
1409 Views
03:08
Meaning and Form
1420 Views
09:03
The Use of the Present Perfect
1376 Views
00:49
Key Words: Present Perfect
3242 Views
04:50
Have or Has
1374 Views
03:20
Since vs For
1559 Views
05:33
THE PRESENT PERFECT & THE SIMPLE PAST
1857 Views
03:45
The Form of the Active Voice
1412 Views
03:29
What is the Passive Voice?
1456 Views
07:20
The Form of the Passive Voice
1416 Views
09:31
Changing from Active into Passive
1209 Views
01:59
The Tense of the Passive Voice
1431 Views
01:52
The Form of Irregular Verbs
1357 Views
01:56
READING COMPREHENSION &VOCABULARY
1343 Views
30:17
STRUCTURE
2414 Views
13:16
REWRITE SENTENCES
1171 Views
03:40
LANGUAGE USE & WRITING
1919 Views
02:36
تقييم الادارة العليا
2112 Views
04:00
مجالات الاداء
1811 Views