A、 is to do
B、 does
C、 had done
D、 is done
答案:D
A、 is to do
B、 does
C、 had done
D、 is done
答案:D
A. appeared
B. happened
C. occurred
D. emerged
A. It doesn't matter.
B. It's a pleasure.
C. It's a small thing.
D. I'll appreciate it.
A. How are you?
B. I’m fine. Thank you.
C. How do you do?
D. Nice to meet you.
A. when
B. which
C. in which
D. that