My suggestion is that he________ an operation at once.

The news that the students would put off the outing until the next week was ________ yesterday.[ ]

This machine is very easy ________ . Anybody can learn to use it in a few minutes.

Was the trip pleasant when you vacationed in the mountain village last summer?—No，it__________for four days when we arrived，so the roads were very muddy.

She his number in the phone book to make sure that she had got it right.[ ]