Each member country of WTO must ______ its laws and regulations and compete on the principle of fairness and co-operation.
| A．cater to | B．correspond to | C．relate to | D．submit to |
While I was looking through the news online，＿．
| A．did a video of a lovely bear come up |
| B．did come up a video of a lovely bear |
| C．up did a video of a lovely bear come |
| D．up came a video of a lovely bear |
Since the earth’s resources are getting fewer and fewer，recycling industry certainly＿＿big benefits in the near future．
| A．promises | B．attempts | C．demands | D．invests |
Nowadays，it is common to see people staring at their mobile phones instead of reading a real book，＿＿＿＿＿＿many experts are worried．
| A．when | B．for which | C．where | D．about which |
Feng Xiaogang，＿＿＿＿＿＿＿＿＿by many as a leading director，left his handprint at the TCL Chinese Theatre．
| A．to recognize | B．recognized | C．having recognized | D．to be recognized |
It’s so cold today．If it should get warmer this afternoon，I＿my car．
| A．would have washed | B．would wash | C．must have washed | D．must wash |