پرسش‌ها با تگ (تست گرامر)

 Through reproduction ………….. the properties of a species.

 Woodrow Wilson believed the United States' entry into World War I would put a —— to the war in months.

If you want to ……… health problems in the future, you should start exercising on a  daily basis. 

 Natural selection is defined as the process ………….. the course of evolution by preserving those traits best adapted for an organism’s survival.

 Many Middle Eastern diplomats still feel that the United States is intent —— the ultimate police in the region.

The foreign student advisor recommended that she ……… more English before  enrolling at the university. 

Agronomists work to improve the quality of crops, increase the yield of fields, and ……… of the soil.

……… and held prisoner for three day, the man was finally rescued by the police.  

The problem facing most tourists is ……… among so many possibilities. 

Manufacturing is Canada’s most important economic activity, ………….. 17 percent of the workforce.