At present ________ of the experiments ________done in labs after the new building has been finished.

laces are flooded by the heavy rain, so theycan’t walk ________ they like these days.

The book is _____. I feel _______.

20 "What can I do for you" or"May I help you" is a pet phrase used by _____

_________ it with me and I’ll see what I can do.