The pen I ________ I ________ is on my desk, right under my nose．

A．think；lost

B．thought；lost

C．think；had lost

D．thought；had lost

The lost boys were last seen ________ by the riverside．

A．play

B．to be playing

C．playing

D．to play

________, when I was ________, I came to live in the countryside together with my parents．

A．In 1980s；in the tens

B．In the 1980；in my tens

C．In the 1980s；in tens

D．In the 1980s；in my tens

He swam ________ the river which runs ________ the city．

A．over；across

B．through；across

C．cross；over

D．across；through

Before long, Lenin found his ________ English ________ greatly．

A．speaking, improving

B．spoken, improved

C．speaking, improved

D．spoken, improving

－Have you started writing your composition yet?

－No, I really don’t know ________．

A．what to write about

B．what to write

C．what to write with

D．what to write in

We’ll get ________ to put them in．

A．something big enough

B．enough big something

C．something enough big

D．big something enough

The students are often encouraged ________ English as much as possible．

A．to speak

B．to say

C．speaking

D．speak

It was ________ weather that all of them stayed at home．

A．such a fine

B．so fine a

C．such fine

D．so fine

Will it be ________ before the professor returns?

A．some times

B．sometime

C．some time

D．sometimes