Scientists are convinced the positive effect of laughter_____physical and mental health.
| A．of, at | B．by, in | C．of, on | D．on, at |
These are the photos of our village, and they will show you ________.
| A．what does it look like | B．what it looks like |
| C．how does it look like | D．how it looks like |
--John, I’ve got my dream job.
--Congratulations! But I want to remind you that you should play better if you really want to
_______ a good impression ______ the employer.
| A．leave ; to | B．make; to | C．leave; with | D．make; on |
Look ! The building which _________now will be used as a library.
| A．is being built | B．to be built | C．is built | D．being built |
The floor is dirty and it requires _________.
| A．being cleaned | B．clean | C．to clean | D．cleaning |
Up to now, the little boy is still unable to _______ to us what he meant just now.
| A．get out | B．get across | C．get along | D．get about |