1. I ____ from your speech on the phone that you are a foreigner, for your English is so good.
[A] doubt [B] ensure
[C] wonder [D] presume
2. When it rains the ground becomes very ____ and makes it difficult for people to walk on.
[A] messy [B] solid
[C] muddy [D] fragile
3. What a(n) ____ that I was in Paris at the same time as you! But it is a pity we didn’t see each other.
[A] chance [B] coincidence
[C] cooperation [D] incidence
4. The highest ____ of governments has been given to the problem of heavy traffic.
[A] priority [B] privilege
[C] potential [D] premise
5. I can ____ believe that she is lazy at home -- she is very lazy at school.
[A] hastily [B] rashly
[C] readily [D] respectively