01:56
READING COMPREHENSION &VOCABULARY
1263 Views
01:52
The Form of Irregular Verbs
1267 Views
01:59
The Tense of the Passive Voice
1351 Views
09:31
Changing from Active into Passive
1121 Views
07:20
The Form of the Passive Voice
1334 Views
03:29
What is the Passive Voice?
1372 Views
03:45
The Form of the Active Voice
1335 Views
05:33
THE PRESENT PERFECT & THE SIMPLE PAST
1677 Views
03:20
Since vs For
1473 Views
04:50
Have or Has
1288 Views
00:49
Key Words: Present Perfect
2999 Views
09:03
The Use of the Present Perfect
1279 Views
03:08
Meaning and Form
1318 Views
02:40
Writing Formal Letters
1311 Views
03:10
Language Use
1909 Views
09:35
Parallel Structure
1462 Views
04:35
Prepositions of Instruments and Means
1299 Views
03:27
Polite Requests
1363 Views
06:30
May as a Modal of Permission and Request
1345 Views
04:11
Can as a Modal of Permission and Request
1124 Views
02:50
عناصر الاداء
1298 Views
03:45
شركة ستيرن
878 Views
01:15
مقياس القيمة المضافة
1100 Views
02:58
مقياس الربحية
1068 Views
02:39
معايير دركر
1213 Views
03:51
مقايس الاداء
1245 Views
01:41
اتخاذ اجراءات تصحيحية
910 Views
01:52
المرحلة الثانية من الرقابة
933 Views
02:49
مراحل الرقابة
2219 Views
04:00
مستويات الرقابة الاستراتيجية
2637 Views