问题

______ difficult the problem was, he tried his best to solve it.

A:No matter
B:Although
C:Whatever
D:However

正确答案是：

同类题型

Don’t ________the light, I _______ a report.

Can I borrow your dictionary I _______ mine at home. — OK. Here you are.

Order me a pot of tea; I’m _______ thirst.

Yao Ming set up his My SpacePagehe could respond to his fans.

Have you got any idea for the summer vacation ? — I don’t mind where we go_________there’s sun, sea and beach[ ]