Whoever lives around that beach___find life there dreamlike.A. wouldB. needC. shallD. o

r everyone.

A. might

B. has to

C. ought

D. need

n.

A. realize

B. realized

C. have realized

D. had realized

_in our daily life.

A. option

B. goodness

C. thing

D. change

Do you know what___so much greenhouse gases in the air?

A. producing

B. has produced

C. will produce

D. produces

When you visit the room, the electronic facilities in it can___and recognize you.

A. interview

B. identify

C. instruct

D. introduce

You___have come to the concert. It was excellent.

A. may

B. need

C. ought to

D. must

in the last twenty years.

A. takes

B. took

C. have taken

D. should taken

It will not be long before everyone___the importance of computer skills at work.

A. will see

B. have seen

C. sees

D. would see

The problem of global warming___for decades.

A. has been existed

B. has existing

C. being existed

D. has existed

Lowering personal production of waste___everyone over the past decade.

A. benefited

B. has benefited

C. benefits

D. benefiting