The rising house price and the high income tax rate have become the biggest _________ of the ordinary people in China today．

concern

influence

fantasy

occupation

I just wonder _________ he came here．Maybe by train?

that

when

whether

how

It came as _________ shock to learn that Bob, one of the top students in our class, failed in _________ exam．

/; the

a; the

a;an

/; an

We give dogs time, space and love we can spare, and ________, dogs give us their all．

in all

in fact

in short

in return

Plastic bags are provided for our convenience but they have also _________ the pollution of the environment．

adapted to

turned to

contributed to

looked forward to

According to _________ UN report, 70 percent of the world population have _________ access to huge amounts of information through the Internet from their homes．

an；不填

a；不填

an; an

a; an

________ that Maric was able to set up new branches elsewhere．

So successful her business was

So her business was successful

So successful was her business

So was her successful business

_________ is reported is that the Ninth National Games for the Disabled will take place in Sichuan in 2015．

It

What

As

Which

We have reached a point in our life _________ we are supposed to make decisions of our own．

which

what

where

that

I just wonder _________ that makes him so excited．

why it does

what is it

how it is

what it is