基础落实
Ⅰ.选词填空
1．Not ________ (received，receiving) any letter from him，I gave him a call.
2．________________ (Following，Followed by) some officials，Napoleon inspected his army.
3．There was a terrible noise ________ (following，followed) the sudden burst of light.
4．When ________ (heating，heated)，liquids can be changed into gases.
5．________ (Used，Using) fo
