How about your new school?——I couldn’t feel _____ about it. All my teachers are very kind and helpful.

Dad, Would you please drive _________ —No hurry. We have enough time before the plane takes off.

Before you Send a letter in the post office, you must buy a .

e knocked at your door justnow, but I didn’t see who _____was

Measures must be ______ to keep the factories _____ going on polluting the rivers[ ]