I have many friends, some are businessmen.
His pale face suggested that he _____ ill and his teacher suggested that he ______to the hospital at once.
Tom was about to close the window ______ his attention was caught by a bird.
It is in the hotel _____ he stayed last night ______ he lot his mobile phone.
Lydia doesn’t feel like ________ abroad. Her parents are old.
The book about environment ______ the importance of protecting the earth.