The manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly.
feather
foot
They are______ interesting novels _______ I want to read them once again.
—How long have you been learning English?—About four months.—________! Your English is so good.
Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.