Words
Gaps
VS
100

The part of the picture that is nearest to us

foreground 

100

Jhon has ........studying animals since he was a child 

been

100

A few days ago we saw/have seen a horse near our house

saw

200

A place where people protect animals and take care for edangered animals. 

sanctuary 

200

He ........ just arrived when he .... (hear) someone screaming

had/ heard 

200

My sister DID/HAS DONE all her homework. Now we can play. 

has done

300
to do something that you wanted to do

succeeded in 

300

It ..... rain, so don’t forget your umbrella.

might

300

I haven`t washed/ washed my cat for 6 months

haven`t washed

400

turned so that the top is at the bottom 

upside-down

400

My feet are killing me because I have been ....... (walk) in these terrible shoes

walking

400

I never played/have never played tennis in my life

have never played

500

the kind of place where  plant or an animal usually live

habitat

500

"Don`t move" (REPORTED SPEECH)

He asked me not to move
500

We haven`t eaten/ate in a restaurant for a long time

haven` t eaten