It's best ______ English like this.

单项选择题Greatly ______ as the leading scientist, he was asked to give lectures in many countries.

单项选择题They would ______ for Guangzhou the next morning and so they went to bed early.

单项选择题The hen ______ on the grass and ______ an egg yesterday morning.

单项选择题—Can I help you —I'd like to have my package ______, madam.

单项选择题They are ______ to eat Chinese food though they have been in America for years.