As is known to all language learners, the newly learnt words will soon be forgotten unless ______ used in everyday communication.
| A．gradually | B．loosely | C．exactly | D．frequently |
——Lily is going to make a presentation in class this afternoon.
—Oh, really? I _____it was Michael’s turn.
| A．think | B．have thought | C．thought | D．am thinking |
_____H7N9 is a deadly virus, it is still safe to eat thoroughly-cooked chicken.
| A．Until | B．While | C．If | D．Since |
The house is dirty because itsince they moved out.
| A．doesn’t clean | B．isn’t cleaned | C．hasn’t cleaned | D．hasn’t been cleaned |
With hundreds of attractions, Beijing is a city _____ makes a lasting impression on itsvisitors.
| A．which | B．where | C．what | D．when |
—Hurry up! Can’t you drive faster ，Jack?
——No. If I got _____speeding ticket ，my dad would take away my car.
| A．other | B．the other | C．each other | D．another |