—What’s the matter with Paul?—A letter from his parents in New Jersey _________ as attack of homesickness.
The two sides have finally___________, though some small differences still exist.
The sunlight came in____________ the windows in the roof and lit up the whole room.
The harder you work,____________.
--Do you like the material? --Yes, it ___________ very soft.
--Where is Xiao Wang? --I don't know.He__________ be in the library.