Most birds find it safe to sleep in the trees, but ________ they have eggs or young chicks, they don’t use a nest．

why

how

unless

where

________ you may have, you should gather your courage to face the challenge．

However a serious problem

What a serious problem

However serious a problem

What serious a problem

The living room is clean and tidy, with a dining table already _______ for a meal to be cooked．

to lay

laying

laid

being laid

I was just going to cut my rose bushes but someone ________ it．Was it you?

has done

had done

would do

will do

It’s necessary to be prepared for a job interview．_______ the answers ready will be of great help．

To have had

Having had

Have

Having

I wasn’t blaming anyone; I ________ said errors like this could have been avoided．

merely

mostly

rarely

nearly

He spent too much time talking on _______ phone while we were all busy at _______ work．

the;/

a;/

/;/

the; the

The little boy still needs the ________ 20 dollars to do with some things _______．

left; remained to be settled

remaining; remaining to be settled

remaining; remaining to settle

remained; remaining to be settled

The suit fitted him well ________ the color was a little brighter．

except for

except that

except

besides