The new method has ____________ them to double the productio

The new method has ____________ them to double the production. enabled let been make cause
He ________ not ________ having done wrong.
was…conscious about
became…aware in
did…recognize
was…aware of
Mr．Smith had to ________ some money now in order to be able to afford a new car next year．
set down
set up
set about
set aside
Suffering from headache,Mary couldn't ________ her assignment.
find out
make out
concentrate on
look over
The father finally _________ his son from giving up the job in the factory.
persuaded
attempted
dissuaded
frightened
Fortunately the damage ________ the boat was not so serious.
to
of
in
upon
He talks ________ he knew all about it.
if
if only
as if
as for
The city Dujiangyan was extensively__________ in the earthquake.
destroyed
injured
wounded
damaged
"I don't think Professor Smith meant to be funny this morning,do you ?"
"NO,although I couldn't help ______ at some of his remarks．"
1aughing
to have 1aughed
but to laugh
to 1augh
The Astronomical Association _________ meets once a week．
which I am a member
in which I am a member
on which 1 am a member
on which I am a member of
The price of the vase ________ its age; if it is very old, it will be worth a lot of money.
depends on
holds on
attends to
follows
I was so careless that I threw the __________ letter into the mailbox.
unprepared
unsealed
unarmed
unpacked
The old woman lost two sons in the war. She died with a ___________ heart.
broken
breaking
being broken
being breakin
Mrs. Smith went __________ town early in the morning.
up
down
along
at
The city's transport system is one of the most __________ in Europe.
sufficient
effective
efficient
enough
It took several hours to get the hall __________ the school dance．
full of
equal to
busy with
ready for
People __________ when they are cold, excited or full of fear.
resemble
tremble
assemble
trouble

was…aware of
set aside 留出 拨出
concentrate on
persuaded
upon
as if 像是
destroyed
laughing couldn't help doing sth
on which I am a member of
depends on
unsealed 未封口的
broken
down go down town
efficient
ready for
tremble 发抖