After a talk with his mother, the little boy has seen to _____ that the same mistake doesn’t happen again.
A.one | B.it | C.him | D.himself |
It was about 600 years ago _______the first clock with a face and an hour hand was made.
A.until | B.when |
C.before | D.that |
If you_______ smoke, please go outside.
A.can | B.should |
C.must | D.may |
Every means _________tried but without any result.
A.have been | B.has been |
C.are to be | D.is to be |
Do you wake up every morning __________ energetic and ready to start a new day?
A.feel | B.to feel |
C.feeling | D.felt |
We must keep in mind the fact __________ China is still a developing country.
A.whether | B.that |
C.why | D.when |