More and more carbon dioxide is being released into the air，________the more severe global warming effects.
#89528
A
contributed to
B
to contribute to
C
contributing to
D
to be contributed to
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They are going to have the serviceman ____ an electric fan in the office tomorrow.
#98587
A
install
B
to install
C
to be installed
D
installed
Finally the thief had to he had stolen the valuable necklace
#96938
A
claim
B
explain
C
admit
D
announce
They love their daughter so much that they are always ready to do everything they can ________ her happiness.
#96346
A
to make sure of
B
make sure of
C
be sure of
D
to be sure of
David threatened______his neighbour to the police if the damages were not paid.
#97591
A
to be reported
B
reporting
C
to report
D
having reported
The children went home from the grammar school, their lessons ______ for the day.
#95583
A
finishing
B
finished
C
had finished
D
had been finished