第一部分：语法单项选择填空（共20小题，每小题1分，满分20分）。
1. Jane ______ here; she is just helping out until the new secretary arrives.
A. will not work B. doesn’t work C. haven’t worked D. didn’t work
2. —Why is it so noisy outside? www.ks5u.com
—The neighbours ______ for a party.
A. have prepared B. are preparing C. prepare D. will prepare
