President Xi Jinping arrived_______ London_______ the evening of October 19th to pay a five-day visit to Britain.
| A．in, at | B．in, on |
| C．at, on | D．at, in |
The Greens will visit Yueyang if they _____ to China.
A. comes B. come C. will come
_____ you_____ your brother can join us. We have had enough people.
A. Both; and B. Either; or C. Neither; nor
_____will you come back? —In an hour.
A.How soon B. How often C. How long
Tomotoes _______ into pieces..
A. are cutted B. are cut C. is cut
—I saw Mr. Green at school this morning.
—No, it _____ him. He flied to Canada last week.
A. can be B. must be C. can’t be