Social networking is an important factor _______ business success.
| A．devoting to | B．appealing to |
| C．attaching to | D．leading to |
This video camera can prevent the picture from jumping as the photographer ______.
| A．moved | B．is moving |
| C．will move | D．has moved |
Today’s approach to advertising is very different from ______ of 20 years ago.
| A．that | B．it | C．some | D．any |
Mother often tells us never to put off ______ we can do today till tomorrow.
| A．where | B．when |
| C．what | D．which |
—What about going by coach? It’s cheap and comfortable.
—If we went that way, it would mean ______ more time than going by train.
| A．to spend | B．spending |
| C．spent | D．being spent |
Hotel owners ______ to find new ways of attracting tourists since the sudden drop in tourism last year.
| A．force | B．have forced |
| C．are forced | D．have been forced |