There has been ____ accidents on this part of road.
| A．a number of | B．a great deal of |
| C．a series of | D．plenty of |
— You look pale. Did you sleep well？
— No. It was already midnight ____ I finished my homework.
| A．before | B．when | C．that | D．since |
Don’t use your cellphone — we are flying at ____ altitude of 10,000 meters and ____average speech is 678km/h.
| A．an; the | B．the; the | C．the; an | D．an; an |
— Don’t you think learning English wastes much time?
— ____. You haven’t got a proper method, I suppose.
| A．I hope not | B．Oh, I cant’t afford it | C．Not likely | D．Exactly |
-----Have you heard that he was awarded the Nobel Prize in Literature last year?
---- ________. He has made a positive contribution to that field.
| A．Congratulations! | B．You must be joking. |
| C．By no means! | D．He deserves it. |
Some lawyers have long called for changes to these laws which they think are ___ in the 21 st Century.
| A．in place | B．on the way | C．by the way | D．out of place |