His mother ___ in a hospital, but she ____ these days.
A. works, isn’t working
B. is working, works
C. is work, doesn’t work
Could you tell me ?
| A．who you are waiting for | B．who were you waiting for |
| C．what was happened | D．how to do |
It’s necessary ______ us to keep our pets clean everyday.
| A．of | B．for | C．with | D．between |
Oxfam Trailwalker on November 5th every year.
| A．took place | B．takes place | C．is taken place | D．is took place |
Tom has much difficulty _____Chinese so he often asks me ______help.
| A．understanding; for | B．understanding; of |
| C．to understand; for | D．to understand; for |
Usually before exams, the students ____two minutes to write down their names.
| A．are given | B．were given | C．gave | D．will give |