Constituting one of the earliest engineering techniques, ......... in Paleolithic time was done in order to extend natural caves. 1) 2) 3) 4)
......... as a masterpiece, a work of art must transcend the ideals of the period in which it was created.
......... break, they can be joined with a touch of nail polish.
Cellulose, ........., is one of the many substances known as carbohydrates.
Conditions required for seed germination include abundant water, an adequate supply of oxygen, and ......... .
When wood, natural gas, oil, or any other fuel burns, ……… with oxygen in air to produce heat.
بعد از she کدوم گزینه درسته ؟ The foreign student advisor recommended that she ……… more English before enrolling at the university.
The problem facing most tourists is ……… among so many possibilities.
-During the course of its growth, a frog undergoes a true metamorphosis ……… with a fishlike larval stage.
The problem facing most tourists is ……… among so many possibilities.