I think difficult for us to learn a foreign language well.
A.it B. that C. this
Our teacher told Simon ___________ forget __________ the door.
| A．not; to lock | B．not to; to lock | C．not; locking | D．not to; locking |
The floor is wet. Who’s going to ___________ ?
| A．mop up it | B．mop up them | C．mop it up | D．mop them up |
Don’t forget ________ an umbrella. It’s going to rain.
| A．to take | B．to bring | C．taking | D．bringing |
The radio says the weather will get _______ later in the day, so we have to stay at home.
| A．better | B．worse | C．good | D．bad |
The students were in a great hurry ____________ the bus after school.
| A．caught | B．catching | C．to catch | D．catch |