__ is really hard __ them to climb Mount Tai.
| A．This, to | B．It, for |
| C．This, for | D．It, to |
How do you usually go to school? I usually go to school ______.
| A．by my bike | B．by bikes |
| C．by bike | D．by a bike |
It takesone hourhis homework.
| A．he; do | B．him; do |
| C．him; to do | D．his; to do |
What do you usually do____ Sunday morning.
| A．in . | B．at . | C．on.. | D．for. |
Jim often gets____ school at eight and gets ___ home at five
| A．\; \ | B．to; to | C．\; to | D．to; \ |
your sister doing the housework now?
| A．Does | B．Is | C．Do | D．Are |