问题

We know that about seventy percent _ the earth _ covered by water.

A:/; is
B:of; are
C:of; is
D:about; are;

正确答案是：

同类题型

Lao Wang ___________ Beijing Opera every morning . Listen, he ___________ in the garden.

England fought _____ France _____ Germany in the war of 1914～1918, the First World War

Not until liberation _ he __free.

How long do you think it was ______ he got home in such bad weather?

The student must have been ill yesterday, ______?