شرکت در آزمون آنلاین
انگلیسی 3
-
درس دوم
| آزمون شماره 9749
1- It has since been discovered that these materials were not suitable for use, ......... a number of chemicals that can cause cancer.
2-
3-
4-
5-
With the number of people in our group .................... , we were able to get the work done much faster.