enlgish practices

1. It is requested that an applicant whose undergraduate work is done at another institution _____ two copies of undergraduate transcripts and degrees directly to the dean of the graduate school.
A．must send
B．send
C．are to send
D．need send

2. Many farmers came to the city, _____ jobs and for all the other legendary opportunities of life in the city.
A．looking for
B．to look for
C．having looked for
D．looked for

3. Alcohol is highly unusual _____ at least twenty percent of it is absorbed directly into the bloodstream.
A．in consequence of which
B．provided that
C．so that
D．in that

4. His features were agreeable; his body, _____ slight of build, had something of athletic outline.
A．somehow
B．as
C．though
D．somewhat

5. Electronic computers, _____ many advantages, cannot carry out creative work or replace man.
A．though having had
B．which have

1.B
2.A
3.D
4.C
5.C
6.C
7.B
8.A
9.B
10.C

1.A 2.A 3.D 4.B 5.A 6.A 7.B 8.A 9.D 10.C

b (should) send
a 伴随状语
d be unusual in that
c slight of build 和athletic outline 是转折关系
a 转折关系, "已经有了许多优点"
a advocate 加 that 或to do
d 科学家已知还要努力十年. 是将来时
d 虚拟语气
c 转折关系
c 定语从句修饰the reason

enlgish practices please translate like enlgish!thanks.