The boy burst into tears ________ he saw his mother．

at the moment

in a moment

for a moment

the moment

Raising environmental awareness was the aim of our art exhibition ________ last week．

to hold

held

having held

being held

________ he was, he still went on with his work．

Tired although

Tiring as

Tired though

While tired

It was the training ________ he had as a young man ________ made him so excellent．

what; that

that; which

that; what

which; that

Not until she took off her dark glasses ________ she was a famous film star．

I realised

that did I realise

did I realise

that I realised

It is ten years since we ________ each other last time．

see

have seen

saw

had seen

More wild tigers have been seen in the forest around this area, ________ there used to be very few．

when

where

what

which

It is usually warm in my hometown in March, but it ________ be rather cold sometimes．

must

can

should

would

You can never be ________ when crossing the street．

very careful

too careful

carefully enough

enough careful

________, you need to give all you have and try your best．

Being a winner

To be a winner

Be a winner

Having been a winner