问题

Everything he _____ to his country
A:are to challenge
B:may be challenged
C:have been challenged
D:are challenging
B:may be challenged
C:have been challenged
D:are challenging
正确答案是:
同类题型
In front of our house ________ we used to swim
Jim ______ many new storybooks.
Don’t walk so fast. You must cross the road as _________as possible. —OK.I will.
Oh no! We’re too lateThe train _______— That’s OkWe’ll catch the next train to London
________ our teacher is ill, ________ he still come to our class to teach us.