A.be reduced
B.reduce
C.be reducing
D.reduced

A.on
B.about
C.of
D.with

A.More beautiful
B.The most beautiful
C.Most beautiful
D.The more beautiful

A.replace
B.happen
C.discuss
D.destroy

A.replace
B.happen
C.discuss
D.destroy

A.nice
B.rise
C.light
D.gift

A.mended
B.objected
C.waited
D.reached

A.mended
B.objected
C.waited
D.reached

A.Packing his luggage, Harry loaded it into the car and set off for the airport.
B.Only after Harry had packed his luggage, did he load it into the car and set off for the airport.
C.No sooner had Harry packed his luggage when he loaded it into the car and set off for the airport.
D.Not until had Harry packed his luggage did he load it into the car and set off for the airport.

A.If the car driver in front didn't stop so suddenly, the accident wouldn't happen.
B.If the car driver in front hadn't stopped so suddenly, the accident wouldn't have happened.
C.If the car driver in front hadn’t stopped so suddenly, the accident would have happened.
D.If the car driver in front had stopped suddenly, the accident would have happened.