问题

Let those in need _______ that we will go all out tohelp them.

A:to understand
B:understand
C:understanding
D:understood

正确答案是：

同类题型

The letters for the boss___________ on his desk but he didn’t read them until three later.[ ]

The girl couldn’t_____ how red his facewas

Excuse me! — —How can I get to the nearest post office

I ____ to go for and I couldn’t get away.

He’s never been to an aquarium.—_______.