el it necessary that everything by the time our manager arrives.— Yes, to make sure the conference is held on schedule.

下列各句中，没有语病的一句是

How can I reserve the tickets? — _____ phone[ ]

As a scientist, Madam Curie devoted herself ________ to her research and that was why she was given two Nobel Prizes.

bhold on, please C. you’re welcomeD. that’ll do