It is important for us to employ a word orphrase according to the ________ in language studies.

orry, but we have no more than one copy of 1942for rent now —That’s OK I’ll take _____

Though it was very late, they _______their discussion.

Why do you suggest we buy a new machine? — Because the old one has been damaged ___________

Good technique in medicine means less pain and fewer deaths ________ it is our duty to master it[ ]