— ____ I go out to play now , Mum ? — No , you ____ .
| A．May ; shouldn''t | B．Can ; needn''t | C．Must ; can''t | D．May ; must |
Could it be in the restaurant in _________ you had dinner with me yesterday ________ you left behind your keys and wallet?
| A．which；which | B．which；that |
| C．that；where | D．where；where |
--—Janet, can I get you anything to drink?
--—____________.
| A．I wouldn't mind a soda | B．No problem |
| C．You are welcome | D．Doesn’t matter |
—— It's no easy task to catch a ticket on a website that receives l billion clicks daily．
一一I can’t agree with you more．Therebe errors for every single step
| A．should | B．must | C．can | D．will |
Progress so far has been very good．We are, __, confident that the work will be completed as expected．
| A．however | B．therefore | C．beside | D．otherwise |
Sometimes, ___ we show our gratitude for a person is reflected in the kind of food we serve him or her．
| A．whether | B．when | C．why | D．how |