______is difficult to______ others.
| A．That , depend on | B．It , depend on |
| C．This, depend on | D． It, depend with |
You are not supposed ________ in public.
A. smoking B. to smoke C. to smoking
--- Jack, I haven't seen your brother for a long time.
--- He _______ Shanghai on business for two months.
A. has gone to B. has been in C. has been to
—Do you have a knife?
—Yes, I do. I have a big .
A. / B. ones C. one
下列字母书写格式正确的是 ________。
A.
B.
C.
当你被介绍认识某人后, 你应该说: “____”.
A. Good morning!B. Thank you! C. Nice to meet you!