Нужно поставить глагол to be в present simple. i (is,are,am) a student. my sister (is,are,were) an architeck. the houses bag (is,are,were) very old. the weather promised to be fine. there (are,were,will be) many stars in the sky. buckingham palaxe (will be, was,is) the place where presidents,kings and politicians go to meet the queen. the yesterday commercial program on tv (was,will be,is) of little artistic value. competition (was,is,will be) a good stimulus in the young managers future work.