Supply the correct forms of the verbs in brackets. 1. we must stop talking. the play (to begin) now. 2. when the teacher (to walk) into the classroom the boys (to play) chess and the girls (to talk). 3. she (to prepare) dinner when a quarrel (to break out) among the children. 4. he says he (to be angry) if you (not, to come) to his party. i (to agree) with him that without you the evening (to be) boring. 5. i think i (to see) them last night at the mall. they (to buy) vegetables