ESERCIZIO NUM: 2556 - CATEGORIA: verbi > present-perfect negative-form - DIFFICOLTA': ****
CLICCA QUI per aprire un TUTORIAL sui VERBI prima di svolgere l'esercizio

Completa le frasi coniugando il verbo che trovi tra parentesi al PRESENT PERFECT CONTINUOUS nella forma NEGATIVA(01):

Carl... to the teacher for the last ten minutes. (not/to listen) / The students... to learn the new words. (not/to try) / Kim... crossword puzzles. (not/to do) / The teachers... in the sun. (not/to lie) / I... in the last lesson. (not/to sleep) / The doctor... the patients. (not/to examine) / They... out loud. (not/to laugh) / We... the whole evening. (not/to phone) / My father... to work lately. (not/to go) / Zack... the whole evening. (not/to dance)