Only when something gets lost ________．

can you realize how important it is to you

how important you can realize it is to you

you can realize how important it is to you

can you realize how important is it to you

She’s developing into someone who’s going to become very poor and require ________．

looked after

being looked after

looking after

to look after

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

is washing away

is being washed away

are being washed away

are washing away

This event not only raised ________ of world hunger, but also raised lots of money to help starving children．

information

knowledge

instruction

awareness

________ you may be right, I can’t altogether agree．

While

As

If

Since

The emergency required that all the tasks ________ at least two days ahead of time．

to complete

should complete

be completed

should have been completed

When first ________ to Britain, tea was not so popular like today

introducing

introduced

being introduced．

introduce

He suddenly saw Sue ________ the room．He pushed his way ________ the crowd of people to get to her．

across, across

over, through

over, into

across, through

They’ve ________ us ＆150,000 for the house．Shall we take it?

provided

supplied

shown

offered

At this time tomorrow ________ over the Atlantic．

We’re going to fly

we’ll be flying

We’ll fly

We are to fly