Answer:
sentence #1
Explanation:
The question mark should be removed.
1. <span>present
2. </span><span>the past tense
3. </span><span>past participle
4. </span><span>present participle.
Hope I helped:P</span>
Answer:
health website run by the World Health Organization
a census report published by the U.S. Census Bureau
Explanation:
Answer:
C. have done
Explanation:
A, B, D use the present continuous (progressive) tense, while C. uses the present perfect tense.
