Certainly I posted your letter — I remember ______ it.
| A．posting | B．to post | C．to be posting | D．have posted |
It was because of bad weather ____ the football match had to be put off.
| A．so | B．so that | C．why | D．that |
All examinations are passed. This is the first time I ____ really relaxed.
| A．have felt | B．feel | C．had felt | D．was feeling |
She insisted that we ________ the source of the river and begin our journey there.
| A．find | B．found | C．would find | D．were to find |
_____ he is determined to do something, no one is able to make him ______.
| A．Once; give up | B．Although; give in |
| C．As long as; give out | D．If; give away |
Rather than ______ on a crowded bus, he always prefers _______a bicycle．
| A．ride; ride | B．riding; ride | C．ride; to ride | D．to ride; riding |