①﹣Do you know where the supermarket is？
②﹣Sorry ，I'm new here．
③﹣Thank you all the same．（ ）
A．①降调②降调③降调B．①降调②降调③升调
C．①升调②降调③降调D．①升调②升调③降调
The biggest challenge we all face is to prevent further environmental disasters. We ________ take action before it is too late.
| A． |
can |
B． |
must |
C． |
may |
D． |
might |
Yuan Longping and his team have solved the problem of ________ for many people.
| A． |
hunger |
B． |
health |
C． |
pollution |
D． |
population |
-Why are you laughing, Daniel?
- There is ________ funny in the newspaper. Come and see.
| A． |
anything |
B． |
something |
C． |
everything |
D． |
nothing |
During Dr Mar's last visit, he ________ on 150 patients on the ORBIS plane.
| A． |
operates |
B． |
is operating |
C． |
will operate |
D． |
operated |
No one is ________. The key is to learn from mistakes and never stop.
| A． |
careful |
B． |
generous |
C． |
famous |
D． |
perfect |