left=左边

right=右边

Straight ahead=在正前方

on the right=在右边

where is....?=在哪里？

There is....=有什么。There is a policeman in the street.=街上有一个警察。

两个人以上，复数用There are...

There are three post offices around here.=附近有三个邮局。

opposite-在对面

The Grand Hotel is opposite the bank.-大饭店在银行对面。

next to-在隔壁，在旁边

It's next to the post office.-在邮局旁边。

east-东

south-南

west-西

north-北

southwest-西南

southeast-东南

northwest-西北

northeast-东北

left左边

right右边

straight ahead 在正前方

over there 在那边

on the left 在左边

on the right 在右边

Where is…?

Where's…?

……在哪里？

There is……

There is a policeman in the street.

街上有一个警察

There's one in west strrt.

西街上有一个邮局

Where's the nearest post office?

最近的邮局在哪里？

The nearest one’s in Market Street.

最近的邮局在集市街上

It's in Market Street.

在集市街上

I'm sorry. I don't know.

对不起，我不知道

Opposite

在对面

The Grand Hotel is opposite the bank.

大饭店在银行对面

next to 

在隔壁，在旁边

It's next to the post office.

在邮局旁边

east 东  south 南

west 西  north 北

southwest西南

southeast东南

northwest西北

northeast东北

where is the post office?

it's over there,on the left.

for instance.比如

i will ask people passing by.

how to ask direction.

straight ahead。正前方

where is the police station? 警察局在哪？

supose you want to go ....

there is ... 有什么

there are three post office around there.

where is the nearest one ?

moreover 而且

opposite 在对面

the Grand Hotel is opposite the bank.and it's next to the post office.大饭店在银行对面，在邮局旁边。