_____ all the inventions have in common is ______ they have succeeded.
| A．What; what | B．That; what | C．What; that | D．That; that |
On her birthday, she received from her parents a nice present _a note was attached, saying "We love you so much"．
| A．which | B．to which | C．in which | D．that |
Find ways to praise your children often, you'll find they will open their hearts to you．
| A．till | B．so | C．and | D．while |
You have failed to do what you _to and I'm afraid the teacher will blame you．
| A．will expect | B．will be expected | C．expected | D．were expected |
— It is not clear whether or how Sandy has influenced the vote．
— That's I don’t agree Obviously, the storm was in Obama’s favor.
| A．what | B．where | C．when | D．how |
The traffic rule says young children under the age of four andless than 40 pounds must be in a child safety seat．
| A．being weighed | B．weighed | C．weighing | D．to weigh |