1.tomorrow ( to be ) monday. 2.even the sun ( to die ) some day. 3.my brother ( to be ) twenty next year. 4.you ( to call ) me tomorrow? 5.he ( to be ) in st.petersburg tomorrow? 6.the car of the future ( to be ) comfortable. 7.i think he ( not to pass ) his exam tomorrow. 8.extensive forests ( to remain ) in the uk in 3000? 9.people ( not to clear ) much forest land in the future. 10.i hope the weather ( to keep ) fine next weekend.