3 and individual variations in patients taken into account:这里在taken之前省略了与上句相同的情态动词和助动河can be。
练习:
1 a come up b come up with c come up to d come up against
2 a to b for c with d from
3 a are caused b caused c are to cause d have been causing
4 a easily b readily c frequently d already
5 a disease-producing b health-improving
c life-threatening d error-correcting
6 a take in b take after c take on d take from
7 a capable b able c skillful d skilled
8 a chronic b acute c recurrent d persistent
9 a precisely b more precisely c precision d more precise
10 a maximum b minimum c majority d minority
11 a get b take c bring d fetch
12 a of b with c for d in
13 a similarly b in this manner c otherwise d in this way
14 a in b for c upon d with
15 a what b where c that d when