humanoid（有人特征的）robot newly acquired by Imperial College in London will lead to deeper understanding of human intelligence．
| A．The; the; / | B．A; a; a | C．A; a; / | D．A; the; / |
－Have you known each other for long?
－Not very long, ____________ we started to work in the company.
| A．after | B．before | C．when | D．since |
It is said that older people who are ______ eaters of fish during their youth lose fewer brain cells.
| A．special | B．regular | C．common | D．proper |
All the citizens, young and old, walked and sang, beautifully _____ in new clothes of all kinds, _______ the success of their football team.
| A．dressing; celebrating | B．wearing; to celebrate |
| C．dressed; celebrating | D．worn; celebrated |
— Excuse me. I want to buy some stamps, but I can’t find a post office.
— I know ______ nearby. Come on, I’ll show you.
| A．one | B．it | C．that | D．any |
—Shall I give you a hand with this as you are so busy now?
—Thank you. ______.
| A．It couldn’t be better | B．Of course you can |
| C．If you like | D．It’s up to you |