there ___an important meeting in their school next monthhasare tobeis to bewill have

问题描述:

there ___an important meeting in their school next month
has
are tobe
is to be
will have

c

is to be 不定式表示将来

is to be...
肯定用将来式的,但是没有there will be ,所以用TO BE表将来,选C!

is to be
be+to + 动词,表示将来要发生的动作。.