There is no doubt _______international cooperation is the key to dealing with cyber crime.

______ is no need for primary students to work at their desks all the long.

There is no   doubt _______  he will win.

Simply ring me up,        I’ll come to your help as soon as possible.

____ the instructions on the packet when you take the drug and the drug, I think, will work soon.

Class regulations state _____ is the last to leave the classroom _____ off all the lights.

----Is it the first time you _______ Beijing?----No. But the first time I ______ here, the city wasn’t so beautiful.

It’s quite some time ______ our teammate Wang Qiang got injured in the foot, but we firmly believe it won’t be long _________ he recovers from it.

Three minutes earlier ____ we could have caught the early train to Philadelphia.

There was no doubt ____ it was in the supermarket _____ I lost my wallet yesterday.

It is known to us __________ it was not until 1938 ________ the first colour TV programme began to be broadcast in the world.

–There, I told you there was a sculpture outside the restaurant . --_________--how strange I hadn’t noticed it.

Attractive ________ the device might seem, “my wife has already done that by herself” was a common response after people seeing it when it was introduced on show this week. 

You should remember that the harder you work, __________.

There is _______ in persuading him when he turns a deaf ear to you.

—Did you look up the time of trains to Shanghai?—Yes，the early train is ________ to leave at 5：30 am.

It ________ some time _________ I realized the truth.

With the development of science and technology，there is no doubt ________ Chinese astronauts will land on the moon in the near future. 

The more one is _______ the English-speaking environment, the better he or she will learn the language.

I found that the homework was ______ I used to get in my old school.