I always forget people's names
(( forgetful ))
They collected very useful information
(( The information ))
No one had ever walked on the moon befor armstrong did it
(( frist to walk ))
He was in the habit of playing tennis
(( used to ))
The 1999 Nobel prize for chemistry went to Dr.zewail
(( awarded ))
Dr.zewail discovered the femto second
(( discovery ))
I admire my uncle for his modesty
(( as ))
We use scales to measure weight
(( used ))
Dr.El-Baz was part of the Apollo project (( on ))
He taught me how to write English
(( the way ))
Tow million years ago , the Western Desert had heavy rainfall
(( fell ))
He advised me on my future plans
(( advice ))
I was born in 1990
(( when ))
my father never smokes
(( Does _ _ _? ))
أرجوا الحل