This disaster ______ that people had no knowledge of first aid and they hadn’t known how to protect them-selves in face of danger.
His father will be back from London ____ a few days.
Taiwan is ____ the east of Fujian.
Henry,____ Mary and Tom, is coming to China for a visit. Which is wrong?
____ the students likes the paintings. Which is wrong?
Something must be done to prevent our city ____ by thick smoke.