Why not stay at home ______ the road is so slippery after the heavy snow?
Some intelligent and successful people find _____ difficult to succeed in language learning.
---Do you know when she _________? ---Sorry, I don’t. But I’ll let you know when she _________.
The buildings in this modern city are growing tall, some even reaching over 400 meters _______ height.
—Can you come to help us with our work by 5 o’clock? —I don’t know if I can help;________.
________ I really don’t art, I find his work impressive.