—The similarities between social networks are striking.
—That ________ come as no surprise，because they are all products of the Internet.
| A．should | B．shall | C．may | D．must |
I got to know him five years ago. We have been in close touch with each other ______.
| A．sometime | B．sometimes |
| C．ever before | D．ever since |
At the end of the meeting, it was announced that an agreement ________.
| A．has been reached | B．had been reached |
| C．has reached | D．had reached |
I don’t like Tom’s way of behavior, but ________ I admire( 钦佩) his great knowledge.
| A．in other words | B．on the other hand |
| C．for one thing | D．as a result |
In New Zealand , people live in the houses with their doors _______ north.
| A．faced | B．face | C．facing | D．faces |
What ________surprise you gave us by wearing such funny________ at so serious a meeting!
| A．/; clothes | B．a; clothing | C．a; dress | D．a; clothes |