Nowadays many women are _____ their late twenties or early thirties when they have their first child.
| A．of | B．in | C．on | D．over |
Sorry I'm late． I ＿＿＿＿＿ have turned off the alarm clock and gone back to sleep again.
| A．might | B．should | C．can | D．will |
I think he’s just going to deal with this problem ____day.
| A．next | B．other | C．following | D．another |
While standing on a moving bus, you’re supposed to hold onto the bar in order not to _____.
| A．in balance | B．keep balance | C．lose balance | D．hold the balance |
We don’t write to each other regularly，but we do keep in
touch by telephoning _____.
| A．at a time | B．once | C．at once | D．once in a while |
Allow children the space to voice their opinions, ___they are different from your own.
| A．until | B．even if | C．unless | D．as though |