Great changes ________ in the rural areas in the last two decades．

A．have taken place

B．took place

C．have been taken place

D．are happening

The crazy fans ________ patiently for two hours and they would wait till the movie star arrived．

A．were waiting

B．had been waiting

C．had waited

D．would wait

The pupils here ________ all kinds of exercises every day in the past four weeks．

A．kept busy doing

B．keep on doing

C．have kept busy doing

D．have been kept busy doing

Even though they ________ for twenty hours, the two neigbours are not on good terms．

A．have been lived side by side

B．had been living side by side

C．have been side by side living

D．have been living side by side

You must be tired now since you ________ for five hours．

A．have been worked

B．have been working

C．worked

D．would work

When a pencil is partly in a glass of water, it looks as if it ________．

A．breaks

B．has broken

C．were broken

D．had been broken

She looked ________ she was very interested in what she was reading．

A．even if

B．as if

C．though

D．as

The bell ________ the end of the period rang, ________ our heated discussion．

A．indicating; interrupting

B．indicated; interrupting

C．indicated; interrupted

D．indicating; interrupted

Suddenly, a tall man driving a golden carriage ________ the girl and took her away, ________ into the woods．

A．seizing; disappeared

B．seized; disappeared

C．seizing; disappearing

D．seized; disappearing

Can you wait for me ________ the work?

A．finish

B．finished

C．finishing

D．to finish