ld apologize to you for failing to visit youlast week, but I’ve been very busy_____ the past few months.

The professor gave a really good speech. — I suggest you ______ him some specific questions about his work experience.

Calculations, which are astronomically exact, have been madewith the use of computers.

Danny, can you come and give me a hand?— Sorry, dad.I’m________. Why not ask Jane? [ ]

The new education system is said to be _______ to the successful development of the country.