20.-Do you mind it I keep pets in this building?
-________.
A.I’d rather you didn’t, actually B.Of course not. It’s not allowed here
C.Great! love pets D.No, you can’t
19.Although he had a disease of the brain which ______, he decided to continue _____ his research and his writing.
A.was getting worse; with B.got bad; for
C.is getting bad; to D.get worse; at
18.-Will $200 ______ the cost of the damage?
-I’m afraid not. I need at least 100 ______ dollars.
A.cover; another B.include; more C.afford; else D.cover; more
17.The medical treatment is developing fast in the countryside. In many villages there is _____ one clinic today.
A.no more than B.at most C.less than D.at least