پرسش‌ها با تگ (تست گرامر)

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

 Glaciers begin to form ………….. more snow falls during the winter than melts and evaporates in the summer.  

 ………….. is rooted in experiments in iron and steel conducted in the nineteenth century.

During the course of its growth, a frog undergoes a true metamorphosis ……… with  a fishlike larval stage.  

—— Jane has an excellent resume, she hasn't found a job yet.

……… their differences, the three models resemble ……… in a crucial respect. 

The author Mark Twain worked as a newspaper reporter in Nevada and California before moving to Hartford, Connecticut, ………….. he wrote most of his books.

Medical research at the cellular level, ……… research on the immune system, has been  made possible through twentieth-century advances in techniques of genetic research.   

In so-called nonfiction novels, a documentary style is combined with fictional  techniques ……… actual events and people.  

Although Margaret Mead had several assistants during her long investigations of  Samoa, the bulk of the research was done by ……… alone.