The teacher gives you a lot of freedom with the computer. However,
it's important for her to know what you're doing.

or

It is important that what you are doing.


It's not enough for Christina just to do these exercises. It's also
necessary for her to understand why she's doing them.

or

It is also necessary that why she's doing them.


This work is needed as soon as possible. It's essential for it to
be finished quickly.

or

It is essential that finished quickly.


We can't go away every other week. It is required for us to be on
campus at least nine weeks every quarter.

or

It is required that on campus at least nine weeks every
quarter.


You shouldn't touch these plants too much. It's desirable for them
to be left alone as much as possible.

or

It is desirable that left alone as much as possible.


He's not really ready for college work. It's preferable for him to
learn English well before starting regular courses.

or

It is preferable that English well before starting
regular courses.


You can't expect Chris to be a computer expert immediately. It's
reasonable for him to have plenty of opportunity to practice.

or

It is reasonable that plenty of time to practice.


Andrew doesn't have to decide right now that he wants to go to that
university. It's appropriate for him to consider other
possibilities first.

or

It is appropriate that other possibilities first.



Mary got a "D" in Mathematics 101. It would be advisable for her to
repeat the course.

or

It would be advisable that the course.


The dentist told Bill he had three cavities. It would be
advisable for him to go to the dentist at least once a year.

or

It would be advisable that to the dentist at
least once a year.


Mrs. Robinson has a lot of valuable jewelry. It would be
advisable for her to insure them.

or

It would be advisable that her jewelry.



Jim had to pay $10.00 for overdue books. It is important for
him to return the library books on time.

or

It is important that the library books on time.



We are leaving for San Fransisco at 9:00 a.m. tomorrow. It is
essential for us to be at the airport one hour before our flight.

or

It is essential that at the airport one hour before
our flight.
plenty of time to practice.


Andrew doesn't have to decide right now that he wants to go to that
university. It's appropriate for him to consider other
possibilities first.

or

It is appropriate that other possibilities first.



Mary got a "D" in Mathematics 101. It would be advisable for her to
repeat the course.

or

It would be advisable that the course.


The dentist told Bill he had three cavities. It would be
advisable for him to go to the dentist at least once a year.

or

It would be advisable that to the dentist at
least once a year.


Mrs. Robinson has a lot of valuable jewelry. It would be
advisable for her to insure them.

or

It would be advisable that her jewelry.



Jim had to pay $10.00 for overdue books. It is important for
him to return the library books on time.

or

It is important that the library books on time.



We are leaving for San Fransisco at 9:00 a.m. tomorrow. It is
essential for us to be at the airport one hour before our flight.

or

It is essential that at the airport one hour before
our flight.