When ____ help, you should say “thank you.” or “It is kind of you”.
| A．offering | B．offered | C．To be offered | D．to offer |
By 2025, when the number of consumers worldwide has reached 4.2 billion, people with high income will be, for the first time, more than _______ struggling to meet basic needs.
| A．one | B．that | C．ones | D．those |
---Where did you come across your old classmate Jane?
---It was in the supermarket _________ she worked _________ I came across her.
| A．where; when | B．that; when |
| C．that; that | D．where; that |
—What’s the event like?
—Several witnesses’ differed from the official version of events.
| A．accounts | B．opinions |
| C．advice | D．explanations |
Many people have applied for a job to our company, but we only have one or two _______ positions at the moment.
| A．empty | B．vacant | C．permanent | D．adequate |
— Did he work overtime last night?
— Yes. He has just been back, ________ like a dog.
| A．to be tired | B．is tired | C．tiring | D．tired |