He tried his best to solve the problem, _______ difficult it was.
A.however | B.no matter | C.whatever | D.although |
33.It is no _____arguing with Bill because he will never change his mind.
A.use | B.help | C.time | D.way |
32.What kind of mistakes do you want to avoid ____full marks in your test?
A.to get | B.get | C.getting | D.will get |
31. _____his being late again,he lost his job and had to stay at home.
A.Owe to | B.As result of | C.In case of | D.Because |
30.We don’t allow____here,but we can allow you ____in the next room.
A.smoking,smoke | B.smoke,smoking | C.smoking,to smoke | D.smoke,to smoke |
29.They look forward____a chance to receive further education.
A.of getting | B.in getting | C.to get | D.to getting |