Walter offered us a lift when he was leaving the office, but ________our work, we declined the offer.[ ]

Do you know who ____ the tomb of Emperor Qin and who ___ the mobile phone—No, but we may ask our teacher.

The hotel was nice; the weather was hot; the beaches were beautiful. _______ I’d say it was a great vacation.

Do you really think I can achieve my goal ? — Absolutely .___ you give up halfway

We are so tired. ______ we could take the day offtomorrow!