To _______ its construction, the Potala Palace is _______ to a limited number of tourists every day.

Can you come to myparty—Yes, ___.

Mr. Smith works with an auto company, but he _________ for this industrial exhibition, since he is on leave.[ ]

a year doesyour school have sports meetings—Twice a year.

oner one _____ to the new workingconditions, the better it will be _______ his working efficiency