.
With a basket on her back, the little girl is walking along the stream with green grass and red flowers ____ on both sides.
| A．to grow | B．grown | C．growing | D．being grown |
One of the requirements for the experiment is that the material _____ to its burning temperature．
| A．is heated | B．will be heated | C．be heated | D．would be heated |
---- Occasions are rare _____ I can spend a day with my daughter.
---- You should spare some time to accompany her.
| A．when | B．where | C．which | D．that |
I will never understand how it ______ that you failed in the examination for you are such a good student.
| A．came about | B．brought in | C．stayed up | D．ended up |
----Do you have any idea why Mark is leaving?
---- No. In fact, everyone is ________about it．
| A．doubtful | B．curious | C．enthusiastic | D．annoyed |
--- Have you heard that Jenny, along with her classmates, to Harbin for the winter vacation?
--- Really? No wonder I haven’t seen her these days.
| A．had gone | B．have been | C．has gone | D．have gone |