※ 引述《scafi (scafi)》之铭言：
: There (is / are) a cat, some pigs and lots
: of ducks in the farm.
: 后面一堆动物理当要用复数are
: 不过native英国朋友用单数is
: 原因是因为后面接的是单数 a cat
The verb following there is singular or plural according to the number of the
subject that follows the verb: There is a message for you. There are patients
in the waiting room. With compound subjects in which all the coordinate words
are singular, a singular verb often occurs, although the plural may also be
used: There was (or were ) a horse and a cow in the pasture. When a compound
subject contains both singular and plural words, the verb usually agrees with
the subject closest to the verb, although a plural verb sometimes occurs
regardless, especially if the compound has more than two elements: There were
staff meetings and a press conference daily. There was (or were ) a glass,
two plates, two cups, and a teapot on the shelf.
https://www.dictionary.com/browse/there