3. Complete the text with the Present Perfect Simple or Present Perfect Continuous forms of the verbs from the box. Sometimes both tenses are correct.
do make not finish not waste work
Our research team ___ on this new development for two years, but we ___ our work yet. What ___(we) all this time ? We ___ time, that's for sure. ___ (we) progress ? Absolutely - as we can see form the interest that scientists from all over the world are taking in our project.
do make not finish not waste work
Our research team ___ on this new development for two years, but we ___ our work yet. What ___(we) all this time ? We ___ time, that's for sure. ___ (we) progress ? Absolutely - as we can see form the interest that scientists from all over the world are taking in our project.
Odpowiedź:
has been working, haven’t finished, have we been doing, haven’t wasted, have we made
Wyjaśnienie: