In doing scientific experiments one must be _______ careful with the instruments.

The child ______ in the countryside knows how to _____ animals like dogs, pigs and so on.

Check you package carefully to make sure you don’t _________ any things we will need in the trip.

For the Turner sisters and their classmates，taking a part­time job might ______ their time for study.

We will ________ the old building to make room for the new cinema.