Those experienced doctors in our country _______the meeting in order to find out the real_______ of bird flu(禽流感).
----How beautiful the university is, Professor Wu. ----So it is. I ______ here for four years and my daughter is studying here too. A. studied B. have studied C. was studied D. had studied
Welcome to our online mall! If you buy ______iphone4 here, you can get a watch for _____free.
—_______ for Beijing? —Yes, and I’ll come back in two months.
Thank you for persuading my mother _______ the army.
—Does he know how to work out the problem? —Yes, he has _______ a good idea to solve it.