More and more high-rise buildings have been built in big cities____ space.

If you don’t need______ that cmail shortlyfill out the term again to have another copy to you.

Oh, dear! I forgot the air tickets.　—You ______ something.　

Hi, Jane. What time do you get up _______ weekdays –I usually get up _______ about six o’clock.

I called you yesterday but you weren’t at home.— I ______ flowers in my garden at that time.