Exercise 1

Write the _present_ and _past_ time forms of the following verbs as the

verb _think_ is written in the table given below.

think

ride

have

give

write

ask

make

try

speak

run

see

do

+Present Time+ +Past Time+

_Singular_ _Singular_

1. I think 1. I thought

2. You think 2. You thought

3. He thinks 3. He thought

_Plural_ _Plural_

1. We think 1. We thought

2. You think 2. You thought

3. They think 3. They thought

+112.+ Be very careful not to use the _s-form_ except for the third

person singular. Be especially careful in the use of different forms of

the verb _be_. It is in the use of this verb that we so frequently make

mistakes. Watch your own language and the conversation of your friends

and note these mistakes and correct them in your own mind. These common

blunders in the use of English mark us as careless or uneducated by

everyone who hears us speak. We have fallen into bad habits oftentimes

and make these mistakes when we know better, and only constant

watchfulness for a time can overcome the habit. After a time we learn to

speak correctly without effort, and then these mistakes made by others

offend the ear like a false note in music.

Plain English · 第 100 / 661 题