President Obama was surprised when he saw the hospitability of Vietnam government and people.
It came ..............................................................................................
A.
B.
C.
D.

It’s thought that he was staying in London at the time of the assault.
He is  ...................................................................................................
A.
B.
C.
D.

As soon as we had finished dinner, the thunderstorm broke.
Hardly ...............................................................................................
A.
B.
C.
D.

______ The increasing economic polarization in San Francisco has no relation to ethnic and educational patterns.
A.
B.
C.
D.

______ City agencies and private charities have succeeded in addressing the problem of homelessness.
A.
B.
C.
D.

 ______ San Francisco has achieved tremendous successes in construction.
A.
B.
C.
D.

1966: Around one third of packaging in (7) _____________________ consists of plastic bags.
A.
B.
C.
D.

1957:The launch of (6) _____________________.
A.
B.
C.
D.

Plastic parts have made _____________________ as much as fifty per cent more efficient since the 1970s.
A.
B.
C.
D.

Experts have calculated that a kilo of plastic packaging can lead to a reduction of _______________kilos in wasted food.
A.
B.
C.
D.