________ that saw the rise of quite a number of new writers．

A．During the first half of the 18th century

B．That it was in the first half of the 18th century

C．It was in the first half of the 18th century

D．It was the first half of the 18th century

There is a real possibility that these animals could be frightened, ________ a sudden loud noise．

A．being there

B．there being

C．should there be

D．there was

Our teacher entered the classroom, ________．

A．a book in hand

B．book in hand

C．book in his hand

D．a book in hands

Do you know the ________ of the saying I just quoted?

A．resource

B．source

C．course

D．cause

He is very stubborn, it is impossible to argue ________ what he doesn't want to．

A．with him about

B．against him about

C．him into doing

D．him to do

Do come here on Monday, ________ we, as planned, will take part in the gathering of AIDS prevention volunteers．

A．then

B．and

C．therefore

D．or

The boy wanted to ride his bicycle in the street, but his mother told him ________．

A．not do it

B．not to do

C．not to

D．do not to

If Joe knew anything about car mechanics, I'm sure he would help us repair the car, but he ________ even less than we do．

A．had known

B．would know

C．knew

D．knows

Online shopping, when properly ________ , can save a lot of time, money and energy．

A．done

B．is done

C．having done

D．doing

After ________ seemed an endless wait, it was her turn to enter the personnel manager's office．

A．that

B．how

C．what

D．why