We’ve failed three times in the experiment,so we’ll have to do it time.

We’ve failed three times in the experiment,so we’ll have to do it       time.

#14520

four

a fourth

fourth

the fourth

推荐题目

When a couple falls into a divorce or separation, their child often has to make a big       in his or her life.

#14305

promise

breakthrough

target

adjustment.

Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can ________ the virus easily.

#12248

pick up

take up

make up

bring up

You have made a few pronunciation mistakes in your oral exam, but ______ , it is fairly good.

#12123

above all

generally speaking

on the whole

on one hand

Time should be made use ______ meaningful things.

#13010

of to do

of doing

to do

doing

Bear in ______ that tomorrow is our dear mother’s birthday.

#14028

mind

head

memory

heart