_____ their final medical check, the astronauts boarded their spacecraft.
[ ]
A. Received B. Being received C. To receive D. Having received
参考答案:
完成句子。1. With a house ________ _______ ______(出现在眼前..
完成句子。1. With a house ________ _______ ______(出现在眼前), we were all pleased as it was so cold and rainy outside.2. He saw a cloud coming down the mountain, ______ ______(遮住) the sun and burying everything in its path.3. She ________ _______ ______ (突然哭起来) wh
AIDS is said ______ the biggest health challenge to both men..
AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.A.that it isB.to beC.that it has beenD.to have been
The noise from the top floor, loud and constant, of the meet..
The noise from the top floor, loud and constant, of the meeting-room _____can be clearly heard in our classroom. [ ]A. being decorated B. having been decorated C. to be decorated D. decorated