________ of the population of the factory ________ young men．

A．Three fifth; is

B．Three fifths; are

C．Three fifths; is

D．Third five; are

Your opinion is good．Don't ________．

A．give up it

B．give it up

C．give in it

D．give it in

Nothing could stop the children ________ the truth．

A．to tell

B．telling

C．from telling

D．B or C

Three ________ four people believe that having healthy teeth is very important．

A．by

B．from

C．out of

D．to

________ more to be pitied than blamed．

A．Not educated is

B．The uneducated is

C．The uneducated are

D．No educated are

He was found to be a thief, ________ disappointed his wife．

A．who

B．that

C．which

D．whom

The little boy had run away ________ I could ask him something about his mother．

A．before

B．until

C．when

D．since

You shouldn't allow ________ games near the classroom, for it is too noisy．

A．to play

B．to playing

C．students playing

D．students to play

Most of the artists ________ to the party were from South Africa．

A．invited

B．to invite

C．being invited

D．had been invited

She came ________ the afternoon of my birthday．

A．in

B．at

C．on

D．by