【題目】He was a medical student before he turned _______ writer.

【題目】Throughout the entire day, there’s not a minute when we’re not on _______ run.

【題目】I don’t know ________, so I write to him.

【題目】The bridge is about ________ wide. Be careful to cross it.

【題目】When we arrived at the hotel, John ________ a meeting with his manager.

【題目】John hopes May ________ to him soon.

【題目】It means that we are doing something right, and we must continue ________ it.

【題目】About ________ the clients are old people.

【題目】Mobile phones make ________ possible for us to talk to anyone from anywhere.

【題目】His dream is ________ an engineer, so he works hard to realize it.