一、单句语法填空
1.Hearing the big noise,the birds flew away (instant).
2.Either tomorrow or Wednesday is fine for me.Do you have a (prefer)?
3.They carried out (secure) checks at the airport.
4.There was no advance (warn) before the earthquake hit.
5.The expert will give us a lecture on how to study (efficient).
6.Now we are living in a fully (integrate) and supportive society.
7.When we walked near the door,it opened (automatic).
8.The new device will keep track your health all the time.
9.The direction of the wind is changing (constant).
10.We could see the tower in the (distant) from the top of the hill.
