Раскройте скобки, употребляя глаголы в present simple, present continuous, present perfect, past simple, past continuous, или future simple: 1)you (to book) the tickets? -yes, (to book) them several days ago. 2) look! somebody (to climb) a tree. 3) when i (to enter) the kitchen, my mother (to cut) some cabbage. 4) he (to go) to the library twice a week. 5) when you usually (to go) to school?