Replace the words in bold type by need not/need I ? etc., or a negative or interrogative have to form. MODEL:I've been invited to a wedding; but I can't go. Will it be necessary for me to send a present? = Shall I have to send a present?
modal-model. swf

1. It isn't necessary for him to go on working. He has already reached retiring age. = He
go on working. He has already reached retiring age.
2. Was it necessary for you to wait a long time for your bus? =
wait a long time for your bus?
3. It isn't necessary for me to water my tomato plants every day. =
water my tomato plants every day.
4. It will be necessary for them to get up early when they go out to work every day. =
get up early when they go out to work every day.
5. We had to stop at the frontier but we were not required to open our cases. = We had to stop at the frontier but
open our cases.