Present Perfect Tense Time Expressions

Fill in the blanks with the most appropriate perfect tense time expressions; ever, never, just, already, yet, so far, recently, since, for...
1. Have your children had Turkish Delight or chocolate-covered pistachios?
2. The children have learnt how to multiply and divide.
3. Look! Your teacher has bought a new car. It looks cool.
4. Our task has been easy , but it will be difficult from now on.
5. Politicians have understand how despised they are for their inaction.
6. The businessman has worked in the same office about twenty-five years.
7. We have taken turns looking after my father he became bedridden.
8. Jamie says he is going to ask Ann to marry him, but he hasn't .
9. Leaving my children was the hardest thing I've done in 60 years.
10. This is the third day of trip, but He's spent all his money.
11. They haven't formally announced their engagement .
12. He buys everything on credit, he has paid cash for anything for years.

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Present Perfect Tense Time Expressions - 3