--Jack , you ____computer games the whole morning. You’d better have a good rest now.
--Thank you, mum. I will.
| A．are playing | B．were playing |
| C．have played | D．have been playing |
Modern China is experiencing a completely new period_____respect for science and creativity has become the guiding principle of society．
| A．which | B．where | C．in which | D．that |
Traffic restrictions have come into effect in Beijing ______to improve the capital’s air quality and traffic situation for the 2008 Olympics．
| A．in order that | B．in an attempt | C．at an attempt | D．in a try |
President Hu Jintao urged that every effort to_____rescue and treat the injured when the earthquake happened in Sichuan this year．
| A．is made | B．must be made | C．should make | D．be made |
Platypus is a strange animal that lays eggs but _____ milk _____ its young．
| A．feeds；to | B．feeds；for | C．fed；at | D．fed；on |
About 85％of the Australian population of 20million______in the six major cities around the coast nowadays
| A．has lived | B．live | C．1ivcd | D．1iving |