—My son is addicted to drugs. He isn’t hopeless, is he?
—Yes, _____ he mends his ways and starts all over.
| A．if | B．when | C．even if | D．unless |
Eat less food _______ you want to put on weight .
| A．if | B．unless | C．until | D．as soon as |
Guilin is the most beautiful place _______ people all over the world want to visit.
| A．where | B．which | C．what | D．that |
—Did you remember to give her the book she asked for?
--_______I saw her , I remembered.
| A．While | B．Suddenly | C．Right | D．The moment |
I shall be surprised if he does this the same way _______ I do .
| A．as | B．like | C．which | D．what |
Robert is good at languages , _______ we all know .
| A．because | B．for | C．as | D．since |