I’m not getting on well with Jim recently — ______ he didn’t show up atyour birthday party the other day

When Tim ___ why he was late for school, he just kept silent.

Hannah was busy with work then but she still tried her best to some time from her tight schedule to visit her mother.

Our company has arranged me to go on a business trip to Shenzhen next week，but I will drop in on my friend in Guangzhou first.In other words，I will go to Shenzhen ________ Guangzhou

There is _______ on using mobile phones atthe gas station.–Do you mean talking on the mobile phone________ at the gas station