— Mum, I really think Dad should have a break and get relaxed.
— Yes. He _______ too long.
| A．read | B．has been reading | C．had read | D．is reading |
He is known _____ a scientist and famous _____ his research on rice.
| A．for; as | B．for; for | C．as; for | D．as; as |
．I live at a busy street and the loud noise nearly ____me mad.
| A．catches | B．buries | C．drives | D．influences |
There is no doubt _____ they will win the game.
| A．that | B．when | C．why | D．what |
______ he has gone abroad is not true.
| A．Whether | B．When | C．That | D．Why |
_______ is certain that practice makes perfect.
| A．What | B．It | C．There | D．Anything |