Since when have you been . . . . . . . . here?

Fill in the blank with the most appropriate word.<br>A new motorway _________.<br>

When we . . . . . . . . her, she . . . . . . . . in the wardrobe.

Fill in the blank with the most appropriate word.<br>Who ________ next to you now?<br>

Fill in the blanks with the most appropriate option:Bill ______ his girlfriend now. That's the third time he _______ her…

In recent decades, the efficiency of the United Nations . . . . . . . . by a growing number of countries.

The electricity . . . . . . . . off last night just as the film on TV . . . . . . . . interesting.

I . . . . . . . . this book for last four years.

Identify the tense used in the following sentence:<br>They have been reading the newspaper.<br>