________her sleeping baby in the arms, the scene was very happy.

her _____ all the cleaning for my family, but recently she has been too busy teaching to do it.

What do you think of genetically modified food (转基因食品) —We all think ______ is careless ______ some scientists to say it is safe before doing any experiment.

Do you know TFBoys— Of course. About____________ students love them very much in our school.

________a certain doubt among the people as to the practical value of the project.