Chest pains can be a warning ____of heart problems.
| A．signal | B．sign | C．mark | D．symbol |
Do you really believe that Mr White has blamed us for the accident,especially ________ ?
| A．you and me | B．I and you |
| C．you and I | D．you and we |
— May I speak to Mary? — This is ________ speaking.
| A．I | B．me |
| C．she | D．hers |
This skirt is made ________ your mother ________ her own measure.
| A．for; to | B．for; for |
| C．to; to | D．for; by |
.________ by the advances in technology, many farmers have set up wind farms on their land.
| A．Being encouraged | B．Encouraging |
| C．Encouraged | D．Having encouraged |
On Sundays there were a lot of children playing in the park, _______ parents were seated together joking.
| A．their | B．whose |
| C．which | D．that |