УКАЖИТЕ ВЕРНЫЙ ВАРИАНТ
А. We expect arrive to the hotel of 7 p.m. in the 15th and will leaving before 8 a.m. at the 22nd.
Б. We expect arriving in the hotel in 7 p.m. at the 15th and will leave before 8 a.m. around the 22nd.
В. We expect to arrive at the hotel around 7 p.m. on the 15th and will be leaving before 8 a.m. on the 22nd.
Г. We expecting to arrive on the hotel at7 p.m. on the 15th and be leaving till8 a.m. on the 22nd.

В, так как грамматически вернее