1.Professor Smith and Professor Brown will ___ in giving the class lectures.
2.The boy slipped out of the room and headed for the swimming pool without his parents‘ .
3.I could just see a car in the distance, but I couldn‘t _____ what color it was.
4.He has impressed his employers considerably and _____ he is soon to be promoted.
5.According to the psychoanalyst Sigmund Freud, wisdom comes from the _____ of maturity.
6.The number of tickets _____ will be determined by the size of the stadium.
7.The rocks are very big with _____ of colors on them.
8.There were no tickets _____ for Friday‘s performance.
9.The lost car of the Lees was found _____ in the woods off the highway.
10.How can we get this language point _____ to the students.
11.This book gives a brief _____ of the history of the castle and details of the art collection in the main hall.
12.John says that his present job does not provide him with enough _____ for his organizing ability.
13.I just managed to _____ a quick breath before I was sucked under the water by the passing boat.
14.As soon as the children were _____, their mother got them out of bed and into the bathroom.
15.Jim was so badly burnt that at first they began to ____ of his life.
16.Despite all the evidence to the contrary, the witness ____ that his story was true.
17.The managing director took the _____ for the accident, although it was not really his fault.
18.The worker agreed to ____ the strike if the company would satisfy their demands.
19.This is the _____ piano on which the composer created some of his greatest works.
20.My camera can be _____ to take pictures in cloudy or sunny conditions.