Robert is said abroad, but I don’t know in which country he is.
| A.have been studying | B.to have been studying | C.have studied | D.to have studied |
— Why didn’t she ask for help at that time?— You know, at such a midnight, there was no one ________.
| A.she could turn to | B.for whom to turn | C.who to turn to | D.for her to turn |
After Yang Liwei succeeded in circling the earth, Chinese astronauts __________ walk in space.
| A.anxious to do | B.eager for | C.are dying to | D.are longing to |
The man I ______ yesterday in the street is my manager.
| A.paid a visit | B.had a talk | C.met | D.dropped |
Students are encouraged to _________ the design competition for robots at the university.
| A.take part | B.operate | C.join to | D.participate in |
The plan has to be _______ to meet the real situation.
| A.adjusted | B.adapted | C.produced | D.refounded |