must have been a lot of work.—Yeah, it usthree days to finish it.

Chinese scientists did a lot in improving people’s health and it gained nationwide recognition and their work ______ praising.

Excuse me, are there any book stores around here— , but there are some on Center Street.

Do you think I should wear an orange shirt today— Yes. _________ orange can bring you good luck, it is good for your interview.

and gentlemen, please fasten yourseat belts The plane__________