I think ______ is necessary ______ us to do something useful to protect the birds.
| A．this; for | B．it; of | C．this; of | D．it;for |
I to the aquarium . Would you like to come with me ?
| A．go | B．am going |
| C．have gone | D．Went |
Project Hope has built many schools big classrooms for the kids.
| A．in | B．of |
| C．for | D．With |
My sister is____English teacher in a middle school in Chengdu.
| A．a | B．an | C．the | D．/ |
--- Excuse me ,could I take the seat here?
--- _______.The child sitting here will come soon.
| A．You’d better not | B．No, thanks |
| C．Yes, please. | D．I’m afraid so. |
The guide said that much attention must ______ these details.
| A．pay | B．be paid |
| C．pay to | D．be paid to |