شرکت در آزمون آنلاین
زبان انگلیسی 1
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درس 3
| آزمون شماره 9170
1- The scientists ………. successful when they solved the problem and found answers to their questions.
2-
The underlined word "it" in the last paragraph refers to ....... .
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I would like to bring this problem to your ....... that the students are not doing well in their exams and you have to do something about it as a ....... teacher.
4-
Which sentence is grammatically wrong?
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His brother died ....... at the age of 45 and doctors tried to find out why he died, while he seemed healthy.