If you have any problems during your study here,please do not _______ to call me for help
A、hesitateA
暂无解析
I have not heard anything from him since his _______.
Withthe_______ofMary,allthegirlstudentsareeagertogototheparty.
In the United States, the foreign policy is decided by the ________ government, not by each state.
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Pine trees are usually believed to _______ cold weather.
