The boss has ________to improve the working conditions in the company.
| A．allowed | B．accepted | C．permitted | D．agreed |
— Where’s Emma?
—I can’t say for sure where she is, but she _____ be out shopping.
| A．can | B．should | C．must | D．may |
I always take an umbrella to work with me in spring, _____ it rains.
| A．in case | B．so that |
| C．until | D．as if |
________ is known to everyone, the moon travels around the earth once every month.
| A．It | B．As | C．That | D．What |
- Have you moved into the new flat?
- Not yet, the rooms __________.
| A．are being painted | B．are painted |
| C．are painting | D．are being painting |
Tony ______ his homework this morning before he went to school.
| A．has done | B．did | C．has done | D．will do |