He had to go to the hospital for treatment.

　　他不得不去醫(yī)院接受治療。

　　Had I known that I would never have come.

　　要是早知道，我絕不會(huì)來的。

　　He had to go to hospital for treatment.

　　他不得不去醫(yī)院接受治療。

　　I've had to put my plans into cold storage.

　　我不得不把我的計(jì)劃暫時(shí)擱置起來。

　　I had a long conversation with her the other day.

　　前幾天我與她作了一次長(zhǎng)談。