The two companies decided to （ ） on a project concerning animal cloning.

I have no objection （ ） your design for the new type of machine this time.

When he really does something wrong, he is willing to （ ）.

He was never （ ） of experimenting with different ways of planting his crops.

Today Bob was late again for class because he overslept(睡过头), but he （ ） an excuse of being ill.

They spent all their money and made no （ ） for the future.

It’s too late to go out. _____， it’s going to rain.

Harmonious marriage, however, does not necessarily （ ） much sharing of interests and responsibilities.

In his opinion, success in life mainly （ ） on how we get along with other people.

He studies so hard to avoid （ ） at the bottom of the class.

A news report is usually very short, （ ） when it is about something very important.

Humble （ ） it may be, there is no place like home.