Either the boy or his sister must have dinner here.
. ——I wonder where Peter is. He said he’d be here for lunch. ——Don’t worry! He _____ be caught in the rush hour.
We shouldn't complain about being poor; many families are even ______.
The most serious problem we are facing now is how to ______ all the pollution.
In his spare time, he often listens to music and watches films to _______ himself.
The global financial crisis, ______ started in the USA in 2008, affects almost every country, especially some developed countries.