______ the manager will come or not doesn"t matter much.

单项选择题I m awfully tired and can t go any farther, Ted. Let s have a rest, ______

单项选择题The young man ______ visited our school this morning is Maria s brother.

单项选择题The children ______ happily in the classroom when the teacher came in.

单项选择题The two girls look exactly ______ in appearance.

单项选择题I am very ______ to you for your help.