商务英语初级相当于什么水平 BBC初级商务英语第3期:打错电话

BBC初级商务英语第3期:打错电话  

2. His _______ number is 998922 .
A straight : Wrong – we don't say ‘a straight number'
B direct : Correct – a ‘direct number' is someone's own telephone number
C certain : Wrong – we don't say ‘a certain number' in this context
D sure : Wrong – we don't say ‘a sure number'
3. I'm ________ to have troubled you.
A upset : Wrong – we don't use ‘upset' to apologise
B apologise : Wrong – ‘apologise' is a verb
but you need an adjective after ‘I'm'
C sorry : Correct – we say ‘I'm sorry' to apologise
D sad : Wrong – we don't use ‘sad' to apologise
4. I'm sorry
you've _______ the wrong number.
A got : Correct – this means that the caller has an incorrect number
B had : Wrong – the caller has the wrong number now
so we don't use the past tense
C have : Wrong – ‘you've' is a contraction of ‘you have' so you don't need ‘have' here
D put : Wrong – we don't ‘put' a number