I didn’t go outing on National Day because the bad weather ______ the difficulty.
If no one _____ the phone at home, ring me at work.
The car ______ at the present speed until it reaches the foot of the mountain at about the o’clock tonight.
If you ______ the medicine you ______ better now.
Tony is coming with _____ boys.
Mr. Wang was such a good teacher _______ the students respect.