________ material used for running tracks in schools across China may be ________ danger to children's health.
| A．/；a | B．The；a | C．/；the | D．The；the |
---Would you take this along to the office for me?
---______________.
| A．With pleasure | B．Thats right |
| C．Never mind | D．Dont mention it. |
A society was set up to __________ the endangered animals and plant life from dying out in this area.
| A．reserve | B．preserve |
| C．observe | D．deserve |
A number of students _______ said they were forced to practice the piano.
| A．to question | B．to be questioned |
| C．questioned | D．questioning |
---- Can I sit in the front row?
----Yes, you can take ________ seat you like.
| A．whatever | B．what |
| C．whichever | D．which |
Its hard to ________ the green beans from the red ones, because there are too many of them.
| A．work out | B．watch out |
| C．sort out | D．set out |