You should make _______ your house or flat is secure.A、 sureB、 certainC、 understanding

You should make sure that your password is long enough to prevent it ______ being easily hacked.

If you are at a crossing where the traffic has green light, you should ______.A．make sure

If you want to make a cheaper daytime call, you should ______.A．ask the operatorB．change t

When you make a _______, you should always try to fulfill it.A) abuseB) bondC) estimate

To make a wish come true, you should______.A．say "God bless you"B．fling salt over your sho

While______your imagination you should be alone