Students should by all means______ their studies though there are a lot of entertainments inviting them.
| A．devote to | B．fix on | C．concentrate on | D．pay their attention |
---Could you tell me the way to the zoo?
---Follow me, please. I happen ______ there, too.
| A．to have been | B．to have gone | C．to be going | D．going |
---Who is making so much noise in the garden?
---______ the children.
| A．They are | B．There are | C．It is | D．Those are |
Historically, ______ main material for making tables has been wood, but ______ metal and stone have also been used.
| A．the; / | B．/; / | C．the; the | D．/; the |
While in London, we paid a visit to the hospital founded__________the nurse Florence Nightingale.
| A．in need of | B．in favor of | C．in honor of | D．in place of |
He has been in high spirits, for pieces of exciting news came to him __________.
| A．one after another | B．one by one | C．little by little | D．step by step |