-How did you pay the workers?

-As a rule, they were paid ________.

A．by hour        B．by the hour       C．by an hour        D. by hours

The engine in your car works far better than ________.

A．my car        B．mine car       C．that in my car’s         D. that in my car

Three years later, Tom was elected ________ monitor of our class.

A．a         B．the         C．/          D. an

--Which one can I take?

--You can take ________ of them; I’ll keep none.

 A．all        B．any        C．both         D. either

The cakes are delicious. He’d like to have ________ third one because ________ second one is rather too small.

A．a, a        B．the, the        C．a, the         D. the, a

Alice is fond of playing ________ piano while Mary is interested in listening to ________music

A．/, the        B．the, /        C．the, the         D. /, /

Some of the wheat came from Canada. How about ________?

A．the other        B．the rest        C．the others        D. others

Alexander Graham Bell invented ________ telephone in 1876.

A．/         B．the         C．one         D. a 

-How many elephants did you see?

-________.

A．No one        B．Nothing        C．None        D. Neither

The guard caught him by ________ arm.

A．an        B．the       C．a        D. /