Here is a photo ________ our classmates.

ou machine, you can either read the user’sguide for guidance or fax us for specific instruction. Don’t ______ thetrial-and-error method.

How are you getting on with the work——So far it _____ easy but things may change.

下列各组中加点字的注音有两处错误的的一项是 （ ）

______________——She is slim and beautiful.