The disappearance of dinosaurs made _______ the evolution and dominance of mammals on the earth.
| A．it was possible | B．it possible | C．possible to be | D．possible |
—I wonder why he has been acting so strange these days.
—Recent pressure at work may ______ his behavior.
| A．account for | B．make for | C．change for | D．stand for |
At the meeting, they sat very_____ and had a _____ talk, but I didn’t know what they were talking about.
| A．close; close | B．closely; close | C．close; closely | D．closely; closely |
There was a very interesting remark in a book by an Englishman that I read recently ______ he thought was the reason for this American characteristic.
| A．to give that | B．to give what | C．giving that | D．giving what |
----- How about the book you are reading now?
----- Excellent indeed. You can find many problems we have come across _____ in it.
| A．covered | B．covering | C．are referred | D．referred |
——Will you come to my office when youyour work? ——Sure.
| A．finished | B．are finishing | C．have finished | D．will finish |