At first the institute refused to purchase(购买) the experiment instrument, but this decision was ______ changed.
We all hold such a view that ________good knowledge of English is what is needed badly in ________international trade today.
They will fly to Shanghai, _____ they plan to stay for two days.
On hearing the news of the accident in the mine, she _____ pale.
---- Are you feeling _______ better today? ---- No, I’m feeling _______ worse.
He raised his hand ________ the taxi ________.