Chairman Mao called on us to ___ the people whole-heartedly.
| A．serve | B．serve for | C．serve to | D．serve with |
As is known to all, the financial crisis firstly broke out in the United States _______ the group of developed countries.
| A．belonging to | B．was belonging to |
| C．belonged to | D．is belonged to |
-------Let’s go to the concert this weekend.
--------________.I’ve heard my favourite pianist Lang Lang is coming.
| A．Go ahead | B．That’ s all right |
| C．Good idea | D．I don’t agree |
Online shopping, when properly, can save a lot of time ,money and energy..
| A．done | B．is done |
| C．having done | D．to do |
computers play an important part in people’s daily life , they still have some disadvantages.
| A．Since | B．As | C．If | D．While |
He had his camera ready ________ he saw something that would make a good picture .
| A．even if | B．if only |
| C．in case | D．so that |