3. Decide which forms from the above table can be used in the gaps below. More than one form may be possible. 1) I _____(SWIM) NOW, BUT I ____(NOT SWIM) WHEN I WAS THREE, I _____(ONLY PADDLE), AND I _____(NOT DIVE) THEN AND I STILL _____(NOT/DIVE) NOW! 2) THE FIRE BRIGADE ARRIVED AND ______(PUT OUT) THE FIRE, BUT THEY ______(NOT SAVE) ALL THE PAINTINGS IN THE PALACE.

4. 1) I CAN SWIM/ AM ABLE TO SWIM NOW, BUT I COULD NOT SWIM/ WAS NOT ABLE TO SWIM WHEN I WAS THREE, I COULD ONLY PADDLE/WAS ONLY ABLE TO PADDLE, AND I COULD NOT DIVE/ WAS NOT ABLE TO DIVE THEN AND I STILL CAN'T DIVE/ I'M STILL NOT ABLE TO DIVE NOW! 2) THE FIRE BRIGADE ARRIVED AND MANAGED TO PUT OUT/ SUCCEEDED IN PUTTING OUT/ WERE ABLE TO PUT OUT (NOT “ COULD PUT”) THE FIRE, BUT THEY COULD NOT SAVE/ DIDN'T MANAGE TO SAVE/ DIDN'T SUCCEED IN SAVING/ WEREN'T ABLE TO SAVE ALL THE PAINTINGS IN THE PALACE.