Today the Red Cross provides a number of services for the public, such as helping people________, teaching first aid and providing blood.
The young woman got to the cinema two hours ahead of time ________ she could get a good position.
English teachers are supposed ________ their students a test in class, even after class, ________ better teaching results.
Other genetic similarities suggested they all ________ a single, common ancestor about 300 years ago.
The managers consider it is important that everything ________ by weekend.
—Your sitting room looks so clean and tidy. —Well, thanks to the babysitter. She is a real ________.