شرکت در آزمون آنلاین زبان انگلیسی 1 - زبان انگلیسی 1 | آزمون شماره 10611

The researchers ......... that corona vaccine could be available in about next two months, in September.

I wonder why some people decide to donate their … after death to help the lives of others while it doesn’t work most of the time.

The underlined pronoun “This” refers to “… .”

I can’t believe you ………. all of my shampoo and just left the empty bottle in the shower!

I was very ... before marriage but soon after marriage, I became a very quiet person.