---I went to see my friends off at the airport.
---Is that_____you were late for the important meeting?
| A．because | B．why | C．how | D．reason |
—You hate Lee, don’t you?
—_____ I just think he’s a bit annoying, that’s all.
| A．Certainly. | B．Not exactly. | C．Of course. | D．Why not? |
--- The price is fine with me. How would you like ____ paid?
--- Well, it’s up to you.
| A．this | B．that | C．it | D．one |
She’s in a hopeless situation, ___ we will keep a very close eye on.
| A．where | B．when | C．which | D．that |
People who exercise _____ are less likely to feel stress.
| A．regularly | B．formally | C．mostly | D．publicly |
Internet shopping is really ____ when people are sure of its safety and security.
| A．taking off | B．taking up | C．setting off | D．setting up |