Don’t trouble trouble ________trouble troubles you.
| A．until | B．when |
| C．while | D．if |
—____ your sister know Tom?
—No, she ____.
| A．Do; don’t | B．Does; doesn’t |
| C．Do; do | D．Does; does |
—Hi, Lucy. Your skirt is very nice.
—____
| A．Yes, it’s nice. | B．That’s OK. |
| C．You’re right. | D．Thank you. |
The story happened three years ago.
| A．started | B．took | C．took place | D．began |
Trees are very important to our environment. They can stop wind from blowing the earth away.
| A．kept | B．put | C．take | D．prevent |
—Hi, have you found your lost watch?
—Not yet, I have looked for it everywhere, but I still haven’t found it.
| A．at those places | B．here and there | C．somewhere | D．over there |