She feels so strongly that each of us should have a role ________in making the earth a better place to live in．

to have played

to play

to be played

to be playing

Americans eat ________ vegetables per person today as they did in 1910．

more than

as twice as many

twice as many as

more than twice as many

It is ________ Tom who is such a naughty boy that everyone dislikes him often surfs the Internet ________ makes his parents angry．

what, that

/; that

that; what

that; that

The old man was telling a funny story, surrounded by many kids, ________ with fascination．

all of whom listened

all of whom listening

all of them listened

all of them were listening

The new dictionaries are very useful．They ________ well and ________ already．

sell; have been sold out

sold; had sold out

sell; sell out

are sold; have been sold out

With the old stone bridge ________, a new steel one is being built in its place．

torn down

being torn down

tearing down

has been torn down

“Well done, John! Not a single mistake ________ in your exam paper this time!” said the teacher．

you made

did you make

had you made

you have made

You are always saying that everyone should be equal, and this is ________ I disagree．

why

where

what

how

Selina didn't notice me coming in, ________ in the new magazine that had come in the mail．

deeply absorbing

was deeply absorbed

deeply absorbed

and deeply absorbed

The time and effort he has devoted during the past few years ________ trees in that remote area is now considered to be of great value．

to planting

to plant

plant

planting