The researchers found clear and convincing evidence ________ happiness is the key when it comes to better health and longer lives.
A.where | B.whether | C.how | D.that |
--- It is said that Mary’s father is very rich .
--- ___________ She wouldn’t accept his help even if it were offered
A.No doubt | B.What for | C.So what | D.No wonder |
Your story is perfect ; I’ve never heard ___before.
A.the better one | B.the best one |
C.a better one | D.a good one |
If we ________ now to protect our mother river ---Li Jiang River , we ‘ll live to regret it.
A.haven’t acted | B.won’t act |
C.don’t act | D.hadn’t acted |
Only after Mary read her article a second time _____the spelling mistakes.
A.did she notice | B.she noticed |
C.does she notice | D.she has noticed |
--- Tom , why didn’t you answer my call yesterday afternoon?
--- Sorry , I didn't hear the phone . I ___________ asleep.
A.must be | B.must have been |
C.could be | D.should have been |