The new policy will________the elders a lot that people over 65 can take buses free of charge. [ ]

Whatever happens, they are determined to ______ the struggle to the end.

－ ________ does the bridge made of steel weigh －About 90,000 tons.

We’re not sure if it ______ tomorrow. If it _____ tomorrow， we won’t go hiking

The researchers found clear and convincing evidence _________ happiness is the key when it comes to better health and longer lives