If our product ____ unsatisfactory within 7 days in any way, you can take it back.
| A．shows | B．proves | C．makes | D．performs |
does he have to type the report on a computer， he has to get the computer to translate it into sounds.
| A．Not only；but also | B．Either；or |
| C．Both；and | D．Not；but |
that young babies learn to do things because certain acts lead to awards.
| A．It is widely accepted |
| B．What is widely accepted |
| C．Which is widely accepted |
| D．That is widely accepted |
He was driving home on the highway last night when he was stopped by a policeman， .
| A．who was charged by speeding |
| B．who accused him of speeding |
| C．which was warned of speeding |
| D．whom reminded him to speed |
As teachers，we be considerate of our students’ feelings and appeal to them．Only in this way will they trust us.
| A．would | B．should | C．ought | D．minght |
The new safety problem of contaminated（受污染的）milk is much more widespread， at least 22 dairy companies and their milk products that have appeared nationwide.
| A．to involve | B．involved | C．involving | D．being involved |