It was not until last July ____ we started to distribute e-readers and launched an e-book store.
A. that
B. when
C. which
D. who
查看答案
It was at yesterday's meeting ____ I misunderstood what you had said.
A. where
B. which
C. who
D. that
It is Tom ____ often helps me with my English.
A. what
B. who
C. which
D. whose
It was at 3 o'clock ____ they received the phone.
A. what
B. that
C. which
D. when
It was two years ago ____ his sister became a doctor.
A. when
B. who
C. that
D. what
微信支付 
支付宝支付