It is not until recently ______ the scientists have found proof of there being water on Mars.
|
A．when |
B．that |
C．how |
D．what |
______ our horizons of thinking, but it also saves us time and energy.
|
A．Not only does the Internet expand |
B．Not only expands the Internet |
|
C．Not only the Internet expands |
D．Not only the Internet does expand |
An excellent way to help memory is to connect information with pictures, which ______ as a memory-link method.
|
A．considers |
B．is considering |
C．is considered |
D．Considered |
Air bags for cars were invented _____ lives. Without them more people would be injured in car accidents.
|
A．saving |
B．saved |
C．to save |
D．to have saved |
Last year John earned _______ his brother did, who has a better position in a bigger company.
|
A．twice as many as |
B．twice as much as |
|
C．twice as more as |
D．twice much as |
With his good sense of direction, he _____ quickly and easily get round in the new city.
|
A．can |
B．must |
C．should |
D．need |
