Jack wasn't saying anything, but the teacher smiled at him ________ he had done something very clever.(2011·湖南)
If it _______ next week , the crops would be saved.
Not only ______ prepare lunch for us, but also _______ clothes for us.
You must read the _______ with great care to see if the drug contains PPA before it is taken.
I ____ too much reading.
The top leaders of the two countries are holding talks in a friendly______