— Mum, where is my ball? I remember I put it here yesterday. — You _______ it in the wrong place.
| A．must put | B．might put |
| C．might have put | D．should have put |
It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any __________.
| A．symptom | B．sense | C．sample | D．shadow |
It was really ________ of your brother not to play the guitar while you were preparing your lessons.
| A．typical | B．generous | C．considerate | D．determined |
Modern science has given clear evidence ______ smoking can lead to many diseases.
| A．what | B．which | C．that | D．where |
The new couple couldn’t afford a new house. _______, they bought a second-hand one.
| A．Besides | B．Otherwise | C．Instead | D．Still |
If you _______ a high fever and a bad headache, you are advised to consult a doctor.
| A．perform | B．develop | C．present | D．gather |