1£®There must be some misunderstanding (understand) during her stay in Beijing because of Elizabeth's poor Chinese.

2£®He sent me a message, apologizing (apology) for having made me wait all the time in the cold.

3£®The great woman will always be remembered for her great contributions (contribute) to the medicine.

4£®According to what the doctor says, non­smokers (smoke) are less likely to suffer from lung diseases.

5£®The robber threatened (threat) to kill me if I didn't give him money at once.

6£®As we all know, December is the twelfth (twelve) month of a year.

7£®I am terribly (terrible) sorry for being late in the morning — my car broke down half way.

8£®Mary left an impression (impress) on me that she was a shy and quiet girl when I first met her in our school.

9£®Be careful with poisonous (poison) snakes when you are going hiking in the mountainous areas.