【单选题】She ______ in New Zealand for years till now since she was very young.
【单选题】My friend hasn’t _____ till now——I hope she isn’t ill.
【判断题】当保险单需转让时,应由保险人加以背书。( )
【简答题】利用PN结的( )制作稳压二极管和雪崩二极管。
【单选题】—I hear that Sang Lan can _____ walk _____ run till now. —But she is trying to do everything she can. [ ]
【单选题】Myra showed no sign of emotion till she reached home, ______ she broke down completely.
【单选题】就全球范围而言,多年平均降水量与多年平均蒸散发量的关系是()。
【单选题】She ________ in his English till now , but Wei Hua still works hard in order to be____ at it.
A.
has made a progress; better
B.
is making progress; more better
C.
is making a progress; better
D.
has made progress; better
【单选题】She tried _______, but failed; now she could do nothing but wait till her husband came.
A.
to search the pockets her key
B.
searching her keys for her pockets
C.
searching the pockets for her keys
D.
to search her keys for the pockets