شرکت در آزمون آنلاین انگلیسی 3 - انگلیسی 3 | آزمون شماره 11219

He should ......... something light – colored when he is cycling at night so that he is more visible.

It's generally accepted that you can use ............................. without explanation provided that the term is already well known by your audience.

In order to protect the bank from the ................... , soldiers keep watching the front of the gate.