With new technology, pictures of underwater valleys can be taken ______ color.

A．by B．for C．with D．in

He was a good student and scored _________ average in most subjects.

A．below B．of C．on D．above

Find ways to praise your children often, ____ you’ll find they will open their hearts to you.

A．till B．or C．and D．but

Sean has formed the habit of jogging ______the tree-lined avenue for two hours every day.

A．between B．along

C．below D．with

At the railway station, the mother waved goodbye to her daughter until the train was _______.

A．out of sight B．out of reach

C．out of order D．out of place

You have failed two tests. You’d better start working harder, ____ you won’t pass the course.

A．and B．so C．but D．or

He found it increasingly difficult to read, ____his eyesight was beginning to fail.

A．and B．for C．but D．or

Japan is ______ the east of China.

A．in B．to C．on D．at

______ the maths problem is difficult， I'll try very hard to work it out.

A．Though B．When C．Before D．After

Jane said she would come here ________ 9:00 and 9:30 tomorrow morning.

A．from B．at

C．between D．around