1. Silver is the best conductor of electricity， copper ___ it closely.
2. All things ____， the planned trip will have to be called off.
3. After the Arab states won independence， great emphasis was laid on expandingeducation， with girls as well as boys ____ to go to school.
to be encouraged
4. No matter how frequently ___， the works of Beethoven always attract large audiences.
to be performed
5. I remember ___ to help us if we ever got into trouble.
him once offering
him to offer
to offer him
No matter how bad things get, something good is out there, just over the horizon.
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