一些英语问题.21.It is ____ ____ of him to send the letter to her p

一些英语问题.
21.It is ____ ____ of him to send the letter to her parents.
A.fertile B.absolute C.absurd D.futile
22.The ______ __ child begged all along the street without getting any food to eat.
A.suffered B.hungry C.angry D.starving
23._________ in social sciences is not so easy as that in physical sciences.
A.Measurement B.Method C.Approach D.Instrument
24.Today we are acquiring earth __________ data from earth-orbiting satellites.
A.noticeable B.watching C.foreseeable D.observational
25.She was deaf his request to do her work.
A.of B.to C.at D.on
26.The tides vary the moon.
A.at B.on C.with D.to
27.The province of British Columbia offers visitors breathtaking views of the Canadian Rocky Mountains.
A.distant B.intimate C.stunning D.high altitude
28.Dry beans are very rich in proteins and carbohydrates and may be eaten as a substitute for meat.
A.at the same time as B.mixed up with
C.in place of D.in addition to
29.Permeable rocks have pores of sufficient size to permit water to pass through them.
A.fluctuating B.enlarged C.adequate D.perfect
30.Shellfish give the deceptive appearance of enjoying a peaceful existence,although in fact life is a constant struggle for them.
A.misleading B.calm C.understandable D.initial
27.breathtaking下画线。
28。as a substitute for下画线。
29。sufficient下画线
30。deceptive下画线。

21. D 琐碎的
22. A 估计不是"饥饿的", 否则B和D都对
23. A 测定办法
24. D 观测的
25. B be deaf to 充耳不闻
26. C 随着
27. C 极好的
28. C 代替
29. C 足够的
30. A 欺骗性的