I have never been to African countries. What about you— ________.

The two old men ______ each other since 1970.

（题文）Our leader officially ________ the plan to develop the Bay Area in his government work report delivered at the start of the National People’s Congress session in March.

It is not how much we do but howmuch love we put into what we do______benefits our workmost

He turned down the request of his friend because it wasthe limit of his power