How ___ I help them to understand when they won’t listen to me?
| A．can | B．would | C．may | D．must |
He did what he could______her out of trouble.
| A．help | B．tohelp | C．helped | D．helping |
Henry goes to a free class every Sunday afternoon which______at 4 pm.
| A．starts | B．will start | C．is to start | D．started |
---Who’s the man talking to our teacher?
---A professor_____a visit to our school.
| A．pays | B．to pay | C．paid | D．paying |
John returned with two workers, with_______ help we finally got the car out of the mud.
| A．whose | B．their | C．which | D．that |
______your compositions carefully and some spelling mistakes can be avoided.
| A．Having checked | B．Check | C．Checked | D．To check |