It will cost a lot of time _______ , I think we shall need it and it will certainly be sueful to us _______.
Jane _________ under the pressure of work and she had to stay in hospital for a month.
— Do you know how I can ________ him? — On his mobile phone.
Although she has a lot of problems, she manages to remain ________.
Don't throw away the old books. Give them to ________ needs them.
Don’t telephone me at 8 a.m. tomorrow — I ________ a meeting.