Use（）when you expect your reader to respond favorably to the main idea in a report.

单项选择题Learning a foreign language is one of the most difficult yet most（）experiences for me.

A.rewarding
B.apply
C.enrich

单项选择题This cake is very sweet.You（）a lot of sugar in it.

A.should put
B.could have put
C.might put
D.must have put

单项选择题The World Wide Web is sometimes jokingly called the World Wide Wait because it（）be very slow.

A.should
B.must
C.would
D.can

单项选择题Not until recently（）the development of tourist-related activities in the rural areas.

A.they had encouraged
B.had they encouraged
C.did they encourage
D.they encouraged

单项选择题I don’t think the gold ring（）the price．It’s（）twenty dollars at the most．

A.worth；worth
B.costs；cost
C.valued；cost
D.worth；valuable

单项选择题Your composition is good but your handwriting still requires （）.

A.improving
B.improved
C.being improved
D.to improve

单项选择题Good morning，Jay.This is Kevin.I’m phoning to（）.

A.inform you of our Christmas party
B.prepare the dinner for the party
C.make sure we've bought everything we need

单项选择题We’ll have to get out and walk，the car’s（）down.

A.broken
B.run
C.fallen
D.gone

单项选择题He （）office in 2000 and （）office a year later.

A.takes；leaves
B.took；resigned
C.takes；left
D.resign；take

单项选择题The company wasted（）investing in out-of-date technology.

A.a million pound
B.millions of pounds
C.several millions of pound
D.a million of pounds