speed up at a loss take up take the place of lay off break down consist live up to lose sight or make out by all means come to light

（1）We mustn't

lose sight of

lose sight of

the significance of environmental protection while advancing economy.This is the key to sustainable development.
（2）He did not want to

take up

take up

a competitive sport like mountaineering.
（3）The mystery of the murder was finally solved after new evidence

came to light

came to light

.
（4）Construction of the teaching building

has sped up

has sped up

by far，because it must be completed by the end of this year as scheduled.
（5）In the current economic crisis，a large number of workers in the factories nationwide

have been laid off

have been laid off

to reduce the costs.
（6）The rescue team

consisting of

consisting of

soldiers，doctors and the local policemen arrived at the quake-stricken area as fast as they could，racing against the clock to save each living soul.
（7）No matter what difficulties we meet on our way，we need to accomplish our goals

by all means

by all means

.
（8）Negotiations

broke down

broke down

.I'm now staring to worry that we'll never reach an agreement for a new contract.
（9）With over 150 different recipes from more than 100 varieties of pasta，Carmen is never

at a loss

at a loss

for
something to cook.
（10）He extremely hard to

make out

make out

his parents' expectations.