—Why do you eat so little?
—I’m _______ a diet to reduce some weight.
| A．in | B．on | C．with | D．under |
---What attracts people to California is its pleasant climate and relaxed lifestyle.
---This is ____ each year a great number of people from all over the world try to ____ to California.
| A．how; immigrate | B．Why; immigrate | C．because; remove | D．why; remove |
Why don’t you go for ___ walk? It’ll give you ___ appetite for your lunch.
| A．a; / | B．a; an | C．/; an | D．/; / |
— Hey, you haven't been acting like yourself. Everything OK?
— _______ .
| A．I’m fine, thanks | B．Sure, it is | C．That’s good | D．It’s OK |
As the night is falling, a long queue stood at the bus stop, nervously expecting _______ .
| A．to pick up | B．picking up | C．to be picked up | D．being picked up |
You’d better book the tickets in advance; _______ we may miss the concert.
| A．however | B．therefore | C．nevertheless | D．otherwise\ |