He makes it a rule to keep record （) every experiment.A、withB、onC、at

He is （) to make it.A. likeB. likelyC. unlikeD. dislike

A small child has to learn to keep its （) before he can walk far. A. border B. bloc

No one wants to make friends with him, because he always keeps a______face.A．curvedB．strai

He tries to keep______of the latest development in IT industry.A．upB．abreastC．alongD．with

And as part of the recovery plan, were making a historic commitment to innovation. The Rec

It makes no difference to me _________ he willcome or not.A.howB.whyC.whenD.whether