We spent many hours in a pleasantconversation______ how to fish.

ften do you eat out —- _________, but usuallyonce a week

“Where have you been?” — “I got caught in traffic; otherwise _____ sooner.”

Is air the lightest thing in the world– Not .Scientists from Zhejiang University have just developed the world’s lightestmaterial.

ctory produces half amillion pairs of shoes every year, _________ are sold abroad