1. 次の文の( )の中から適当なものを選びなさい。
(1) Jack(can't, must) be fine. He has been in the hospital for a week.
(2) You(should, ought) to take a rest.
(3) We (would, should ) often play baseball when we were young.
(4) I (must, had to) walk home yesterday.
(5)(Shall, Will ) I pick you up at your house tomorrow?-Yes, please.
(6) I tried to open the door, but it (should, would) not open.
(7) We can't wait any longer. He (may not, must not) come today.