___________  on his past mistakes, Ted realized that he had stayed around the wrong people．

A．To reflect

B．Reflected

C．Reflecting

D．Being reflected

In order to keep fit, I ________ in the park every morning．

A．work on

B．work at

C．work out

D．work with

Though it is 30 years ________ we last met, I still remember the scene ________ we got separated on a rainy day．

A．before; where

B．before; which

C．since; when

D．since; where

It is strange that she ________ so．

A．say

B．says

C．said

D．saying

They spent as many hours as they could ________ their lessons．

A．to study

B．studying

C．study

D．studied

By the time the firemen arrived, the big fire ________ for nearly half an hour．

A．had gone out

B．had been put out

C．had put out

D．had been out

It is usually warm in spring, but it ________ be rather cold．

A．can

B．must

C．should

D．would

How much you earn is not very important．It is how you earn the money that ________．

A．values

B．counts

C．minds

D．means

Although the old man is ________ over ninety, he is still in good health．

A．too

B．well

C．very

D．so

With more forests being destroyed, huge quantities of good earth ________ each year．

A．is washing away

B．is being washed away

C．are washing away

D．are being washed away