1.He _____ for our company since last year
а. is working b. has worked c. has been working
2.The engineers won't start working until all the defects _______
a. are eliminated b. aren't eliminated c. will be eliminated
3. Mrs. Wilson took her _____ to a toy shop.
a. five-year-old son b. five-years-old son c. five-year-son
4. New modern residential projects _____ in the cties/
a. appear b. appears c.has appeared
5. Much attention ____ to the planting of greenery.
a. is paid b. pays c. has paid