Theorganizationdemandedthatthegovernment ________all political prisoners. [ ]

In the forest we observed some trees ____the leaves were black with disease.

Did your uncle phone you again the next day? —No, it was a fortnight ___ he gave me a second call.

Having worked for as long as ten hours, theyoung man lay on the ground, _____.

Young students are______ not to smoke both in and out of school