Many new houses are said ___ already.
| A．have built | B．to build | C．to be built | D．to have been built |
.The company ______ a survey to find out customers’ reaction to the new products.
| A．concerned | B．conducted | C．predicted | D．previewed |
Edwards's always chasing after rainbows and never ____ a really practical idea.
| A．coms up with | B．look forward to |
| C．catches up with | D．comes over to |
______ careful you are, ______ mistakes you will make.
| A．The less; the better | B．The more; the fewer |
| C．The fewer; the richer | D．The more ; the poorer |
.People in developed countries are supposed ______ more healthy food before than what they have today.
| A．to be had | B．to have | C．had | D．to have had |
Tim Berners Lee invented World Wide Web in 1991, which _____ everyone to use the Internet
| A．allowed | B．afforded | C．managed | D．left |