I can’t carry the box ， Mum . — _________ ， I can help you .

The foreign teacher suggested __________ more to improve our reading skills．

More than thirty students competed _____ each other in the composition competition.— But they could only compete _____ three medals[ ]

The boy went swimming in the deep lake，________ his mother’s fear for his safety

Many people may be surprised by the number of chemicals that they are exposed to through everyday household products.