纯口哨铃声大全:stay up 后用doing还是to do

stay up 后用doing还是to do think of后是+ to do还是doing? complete作动词后应接to do 还是 doing？ make up one's mind后面跟to do 还是doing? apraciate to do 还是+doing soppuse to+do还是doing pretend doing 还是to do heip sb.后面用to do 还是用 doing。 make a good use of 后加doing 还是to do? encourage doing 还是encourage to do