As a child, Jack studied in a village school, ________ is named after his grandfather．

A．which

B．where

C．what

D．that

My friend Tom is ________ various research projects．

A．engaged with

B．busy in

C．occupied with

D．absorbed to

It is the second time that I ________ in Shanghai．What great changes in Shanghai! It is ten years since I ________ it last time．

A．have been; left

B．had been; left

C．have; had left

D．went; had left

Was it on a lonely island ________ he was saved one month after the boat went down?

A．where

B．which

C．what

D．that

I like this house with a beautiful garden in front, but I don't have enough money to buy ________．

A．one

B．it

C．this

D．that

The best sewing-machines ________ can be ________ easily have been sent to the remotest villagers in the south．

A．whether; exported

B．that; operated

C．who; observed

D．/; sold

The vaccinations(疫苗)have been ________ directly to the villagers from the factory who couldn't purchase in the local hospital．

A．gathered

B．distributed

C．produced

D．recycled

During the hard time of droughts, a large quantity of water was pumped from the rivers, ________ led to their ________．

A．that; drying up

B．which; drying up

C．who; eating up

D．where; coming up

My nephew ________ watch whales spraying water from the blow-holes after he listened to my story．

A．was dying to

B．was equal to

C．was opposite to

D．was close to

As he reached ________ front door, Jack saw ________ strange sight．

A．the; a

B．the;/

C．a; the

D．/; a