There is “h” and “u” in the word “hour”.
| A．a , an | B．an , an | C．an , a | D．a , a |
_______ jeans were invented over 100 years ago, they're still in fashion today.
| A．Because | B．If | C．Although | D．Since |
We _______pay to get into the concert. It's free.
| A．can't | B．mustn't | C．might not | D．don't have to |
--Good morning, sir! _________?
-- I'd like to buy a sweater for my daughter.
| A．What can I do for you | B．What are you doing |
| C．How about the sweater | D．Can you help me |
You have to be ______ and wait until I finish my work.
| A．patient | B．strict | C．honest | D．active |
--My parents and I will go to London for a trip tomorrow. --Really? __________.
| A．I don't think so | B．Have a good time |
| C．That's very strange | D．You should try it |