Поставить предложения в вопросительную и отрицательную формы. 1.We have just received the SOS signal from an unknown

1. Have we just received the SOS signal from an unknown ship? We haven\'t just received the SOS signal from an unknown ship. 2. Have the sailors scrubed the deck lately? The sailors haven\'t scrubed the deck lately. 3. Has the ice-breaker already conducted the cargo ship Gotland to the port? The ice-breaker hasn\'t already conducted the cargo ship Gotland to the port. 4. Have they visited the Kremlin today? They haven\'t visited the Kremlin today.